top, ps: do not output trailing spaces

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

include/usage.h

@@ -1338,7 +1338,7 @@
 #define ftpd_trivial_usage \
        "[-wvS] [-t N] [-T N] [DIR]"
 #define ftpd_full_usage "\n\n" \
-       "FTP server\n" \
+       "Anonymous FTP server\n" \
        "\n" \
        "ftpd should be used as an inetd service.\n" \
        "ftpd's line for inetd.conf:\n" \

libbb/procps.c

@@ -471,6 +471,8 @@ void FAST_FUNC read_cmdline(char *buf, int col, unsigned pid, const char *comm)
 	sz = open_read_close(filename, buf, col);
 	if (sz > 0) {
 		buf[sz] = '\0';
+		while (--sz >= 0 && buf[sz] == '\0')
+			continue;
 		while (--sz >= 0)
 			if ((unsigned char)(buf[sz]) < ' ')
 				buf[sz] = ' ';