doc: use semicolon instead of period in option descriptions

Also do not end option descriptions with a period, properly indent
continuation lines, and make some tiny clarifications.

* src/du.c (usage): Lowercase after semicolon.
* src/ls.c (usage): Semicolons instead of periods, small rephrasing
and two hyphens for clarity, proper indentation.
* src/mktemp.c (usage): Semicolons and lowercase.
* src/od.c (usage): Semicolons.
* src/ptx.c (usage): Use the standard phrase, clarify default option.
* src/setuidgid.c (usage): Properly indent continuation line.
* src/split.c (usage): Semicolons, lowercase, no final period.
* src/stat.c (usage): Semicolons, lowercase.
* src/tail.c (usage): Proper indentation, one shorter rephrasing,
semicolons, no final periods.
* src/timeout.c (usage): Properly indent, semicolons, no final periods.
Fixes http://bugs.gnu.org/14976

1 files changed, 1 insertions, 1 deletions

diff --git a/src/ptx.c b/src/ptx.c
index f99367328..49ea7a3ea 100644
--- a/src/ptx.c
+++ b/src/ptx.c
@@ -1853,7 +1853,7 @@ Output a permuted index, including context, of the words in the input files.\n\
       fputs (VERSION_OPTION_DESCRIPTION, stdout);
       fputs (_("\
 \n\
-With no FILE or if FILE is -, read Standard Input.  '-F /' by default.\n\
+With no FILE, or when FILE is -, read standard input.  Default is '-F /'.\n\
 "), stdout);
       emit_ancillary_info ();
     }