Don't call errx() with a variable format string

MFC after:	1 week

1 files changed, 1 insertions, 1 deletions

diff --git a/usr.bin/fmt/fmt.c b/usr.bin/fmt/fmt.c
index 06f7356..c601c4d 100644
--- a/usr.bin/fmt/fmt.c
+++ b/usr.bin/fmt/fmt.c
@@ -198,7 +198,7 @@ get_positive(const char *s, const char *err_mess, int fussyP) {
   char *t;
   long result = strtol(s,&t,0);
   if (*t) { if (fussyP) goto Lose; else return 0; }
-  if (result<=0) { Lose: errx(EX_USAGE, err_mess); }
+  if (result<=0) { Lose: errx(EX_USAGE, "%s", err_mess); }
   return (size_t) result;
 }