Improve --help switch output for pacman utils

Unify the formatting of the --help switch for pacman utils, if it exists.
All of the pacman utils will now output help text using the following
format:

  util-name (pacman) v<pacman version>

  one line description of util's purpose

  Usage: util-name [options]

    -b, --bar      whatever --bar does
    -f, --foo      whatever --foo does
    -h, --help     display this help message

The --help switch does not exist for a couple of the utils, so the
help/usage text for those will be displayed when the util is run
with no arguments.

Reported-by: Karol Błażewicz <karol.blazewicz at gmail.com>
Signed-off-by: Jason St. John <jstjohn@purdue.edu>
Signed-off-by: Allan McRae <allan@archlinux.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/src/util/testpkg.c b/src/util/testpkg.c
index 10b2f2c2..d1b75ac5 100644
--- a/src/util/testpkg.c
+++ b/src/util/testpkg.c
@@ -22,8 +22,6 @@
 
 #include <alpm.h>
 
-#define BASENAME "testpkg"
-
 __attribute__((format(printf, 2, 0)))
 static void output_cb(alpm_loglevel_t level, const char *fmt, va_list args)
 {
@@ -47,7 +45,9 @@ int main(int argc, char *argv[])
 	const alpm_siglevel_t level = ALPM_SIG_PACKAGE | ALPM_SIG_PACKAGE_OPTIONAL;
 
 	if(argc != 2) {
-		fprintf(stderr, "usage: %s <package file>\n", BASENAME);
+		fprintf(stderr, "testpkg (pacman) v" PACKAGE_VERSION "\n\n"
+			"Test a pacman package for validity.\n\n"
+			"Usage: testpkg <package file>\n");
 		return 1;
 	}