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top: some minor tweaks supporting long cmdline options

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This darn patch began as 1 correction to an extraneous
comma in the man document. Then, it grew to include an
adjustment for a couple of additional man page things.

After that, I figured I might as well tighten up logic
dealing with those awful gaps in the getopt_long code.

[ the error_exit mentioned in the associated comment ]
[ will only be taken when '=' ends the argv vectors! ]

Signed-off-by: Jim Warner <james.warner@comcast.net>
This commit is contained in:
Jim Warner
2021-09-08 00:00:00 -05:00
committed by Craig Small
parent 24bb9227ac
commit 271004bd0d
2 changed files with 9 additions and 6 deletions
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top/top.1
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@@ -293,8 +293,9 @@ as scalable columns and discussed under topic `3a. DESCRIPTIONS of Fields'.
.\" ----------------------------------------------------------------------
Mandatory\fI arguments\fR to long options are mandatory for short
options too.
The equals sign can be used with either option form and whitespace
before and/or after the `=' is permitted.
Although not required, the equals sign can be used with either option
form and whitespace before and/or after the `=' is permitted.
.TP 3
\-\fBb\fR, \fB\-\-batch\fR
@@ -446,7 +447,7 @@ The `p', `U' and `u' \*(COs are mutually exclusive.
.TP 3
\-\fBV\fR, \fB\-\-version\fR
Show library version, then quit.
Display version information, then quit.
.TP 3
\-\fBw\fR, \fB\-\-width\fR [=\fICOLUMNS\fR]
@@ -460,7 +461,7 @@ In normal display mode, when used without an argument \*(We will\fI attempt\fR
to format output using the COLUMNS= and LINES= environment variables, if set.
With an argument, output width can only be decreased, not increased.
Whether using environment variables or an argument with \-w, when\fI not\fR
in Batch mode actual, terminal dimensions can never be exceeded.
in Batch mode actual terminal dimensions can never be exceeded.
\*(NT Without the use of this \*(CO, output width is always based on the
terminal at which \*(We was invoked whether or not in Batch mode.