make nop usage string a constant array

The compiler could probably determine this already, but this makes it a little
more obvious that it can be inlined and the useString symbol can be the start of
the data rather than a pointer to the start of the data.

diff --git a/cmd/tools/nop.c b/cmd/tools/nop.c
index 0fc805c0ecf3ad66db7c4b57a7b5d8320743b275..1c3cee97ceec203b0f5cf5d5f9ed874b346bc51a 100644 (file)
--- a/cmd/tools/nop.c
+++ b/cmd/tools/nop.c
@@ -23,7 +23,7 @@
 char **Files;
 int chkOnly;
 
-static char *useString = "Usage: nop [-p?] <files>\n\
+static const char useString[] = "Usage: nop [-p?] <files>\n\
   -p - check for valid DOT\n\
   -? - print usage\n\
 If no files are specified, stdin is used\n";