documentation: Update watch man page

Added locale details and fixed this manual page to follow standards
including ordering it the right way, keeping the names of things
consistent and removing authors section.

Signed-off-by: Craig Small <csmall@enc.com.au>

watch.1

@@ -1,4 +1,4 @@
-.TH WATCH "1" "June 2011" "procps-ng" "User Commands"
+.TH WATCH 1 "2016-06-03" "procps-ng" "User Commands"
 .SH NAME
 watch \- execute a program periodically, showing output fullscreen
 .SH SYNOPSIS
@@ -9,11 +9,8 @@ watch \- execute a program periodically, showing output fullscreen
 runs
 .I command
 repeatedly, displaying its output and errors (the first screenfull).  This
-allows you to watch the program output change over time.  By default, the
-program is run every 2 seconds.
-By default,
-.B watch
-will run until interrupted.
+allows you to watch the program output change over time.  By default,
+\fIcommand\fR is run every 2 seconds and \fBwatch\fR will run until interrupted.
 .SH OPTIONS
 .TP
 \fB\-d\fR, \fB\-\-differences\fR [\fIpermanent\fR]
@@ -23,7 +20,8 @@ has changed at least once since first iteration.
 .TP
 \fB\-n\fR, \fB\-\-interval\fR \fIseconds\fR
 Specify update interval.  The command will not allow quicker than 0.1 second
-interval, in which the smaller values are converted.
+interval, in which the smaller values are converted. Both '.' and ',' work
+for any locales.
 .TP
 \fB\-p\fR, \fB\-\-precise\fR
 Make
@@ -69,13 +67,81 @@ Display help text and exit.
 .TP
 \fB\-v\fR, \fB\-\-version\fR
 Display version information and exit.
-.SH NOTE
-Note that POSIX option processing is used (i.e., option processing stops at
+.SH "EXIT STATUS"
+.PP
+.RS
+.PD 0
+.TP
+.B 0
+Success.
+.TP
+.B 1
+Various failures.
+.TP
+.B 2
+Forking the process to watch failed.
+.TP
+.B 3
+Replacing child process stdout with write side pipe failed.
+.TP
+.B 4
+Command execution failed.
+.TP
+.B 5
+Closing child process write pipe failed.
+.TP
+.B 7
+IPC pipe creation failed.
+.TP
+.B 8
+Getting child process return value with
+.BR waitpid (2)
+failed, or command exited up on error.
+.TP
+.B other
+The watch will propagate command exit status as child exit status.
+.SH NOTES
+POSIX option processing is used (i.e., option processing stops at
 the first non\-option argument).  This means that flags after
 .I command
 don't get interpreted by
 .BR watch
 itself.
+.SH BUGS
+Upon terminal resize, the screen will not be correctly repainted until the
+next scheduled update.  All
+.B \-\-differences
+highlighting is lost on that update as well.
+
+Non-printing characters are stripped from program output.  Use "cat -v" as
+part of the command pipeline if you want to see them.
+
+Combining Characters that are supposed to display on the character at the
+last column on the screen may display one column early, or they may not
+display at all.
+
+Combining Characters never count as different in
+.I \-\-differences
+mode.  Only the base character counts.
+
+Blank lines directly after a line which ends in the last column do not
+display.
+
+.I \-\-precise
+mode doesn't yet have advanced temporal distortion technology to compensate
+for a
+.I command
+that takes more than
+.I interval
+seconds to execute.
+.B watch
+also can get into a state where it rapid-fires as many executions of
+.I command
+as it can to catch up from a previous executions running longer than
+.I interval
+(for example,
+.B netstat
+taking ages on a DNS lookup).
 .SH EXAMPLES
 .PP
 To watch for mail, you might do
@@ -113,97 +179,3 @@ watch uname \-r
 isn't guaranteed to work across reboots, especially in the face of
 .B ntpdate
 or other bootup time-changing mechanisms)
-.SH BUGS
-Upon terminal resize, the screen will not be correctly repainted until the
-next scheduled update.  All
-.B \-\-differences
-highlighting is lost on that update as well.
-.PP
-Non-printing characters are stripped from program output.  Use "cat -v" as
-part of the command pipeline if you want to see them.
-.PP
-Combining Characters that are supposed to display on the character at the
-last column on the screen may display one column early, or they may not
-display at all.
-.PP
-Combining Characters never count as different in
-.I \-\-differences
-mode.  Only the base character counts.
-.PP
-Blank lines directly after a line which ends in the last column do not
-display.
-.PP
-.I \-\-precise
-mode doesn't yet have advanced temporal distortion technology to compensate
-for a
-.I command
-that takes more than
-.I interval
-seconds to execute.
-.B watch
-also can get into a state where it rapid-fires as many executions of
-.I command
-as it can to catch up from a previous executions running longer than
-.I interval
-(for example,
-.B netstat
-taking ages on a DNS lookup).
-.SH "EXIT STATUS"
-.PP
-.RS
-.PD 0
-.TP
-.B 0
-Success.
-.TP
-.B 1
-Various failures.
-.TP
-.B 2
-Forking the process to watch failed.
-.TP
-.B 3
-Replacing child process stdout with write side pipe failed.
-.TP
-.B 4
-Command execution failed.
-.TP
-.B 5
-Closing child process write pipe failed.
-.TP
-.B 7
-IPC pipe creation failed.
-.TP
-.B 8
-Getting child process return value with
-.BR waitpid (2)
-failed, or command exited up on error.
-.TP
-.B other
-The watch will propagate command exit status as child exit status.
-.SH AUTHORS
-The original
-.B watch
-was written by
-.UR rembo@\:unisoft.\:com
-Tony Rems
-.UE
-in 1991, with mods and
-corrections by Francois Pinard.  It was reworked and new features added by
-.UR mkc@\:acm.\:org
-Mike Coleman
-.UE
-in 1999. The beep, exec, and error handling features were added by
-.UR morty@\:frakir.\:org
-Morty Abzug
-.UE
-in 2008.  On a not so dark and stormy morning in March of 2003,
-.UR asd@\:suespammers.\:org
-Anthony DeRobertis
-.UE
-got sick of his watches that should update every minute eventually updating
-many seconds after the minute started, and added microsecond precision.
-Unicode support was added in 2009 by
-.UR procps@\:rrod.\:net
-Jarrod Lowe
-.UE