This changes inferior.c to add Usage lines for all commands, and to
change how "metasyntactic variables" are written to conform to GNU
style.
While doing this I noticed that the manual doesn't document the
argument to "info inferiors", so I've added that as well.
ChangeLog
2018-04-27 Tom Tromey <tom@tromey.com>
* inferior.c (initialize_inferiors): Update help strings.
doc/ChangeLog
2018-04-27 Tom Tromey <tom@tromey.com>
* gdb.texinfo (Inferiors and Programs): Document argument to "info
inferiors".