avoid warnings, adjust for const-correctness

* libidu/scanners.c (long_options_c, long_options_asm)
(long_options_text, long_options_perl): Add initializers.
* src/fid.c (long_options): Add initializers.
* src/fnid.c (long_options): Add initializers.
* src/lid.c (ATTRIBUTE_UNUSED): Define.
(long_options): Add initializers.
(report_nothing): Mark parameter as unused.
(get_editor_argv, report_edit): Adjust for const-correctness.
* src/mkid.c (long_options): Add initializers.
(report_statistics): Don't subtract "void*" pointers.  Cast to "char*".
* src/xtokid.c (long_options): Add initializers.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/fid.c b/src/fid.c
index 46d9442..9fe583b 100644
--- a/src/fid.c
+++ b/src/fid.c
@@ -63,7 +63,7 @@ static struct option const long_options[] =
   { "file", required_argument, 0, 'f' },
   { "help", no_argument, &show_help, 1 },
   { "version", no_argument, &show_version, 1 },
-  { 0 }
+  {NULL, 0, NULL, 0}
 };
 
 void