Fix a harmless format string bogon and mark a function as __printflike().

There is still one instance of non-constant format string use inside that
function, but it's hard to fix.

MFC after:	1 week

1 files changed, 1 insertions, 1 deletions

diff --git a/usr.sbin/pw/pw.c b/usr.sbin/pw/pw.c
index a1f9d8c..b59b9f9 100644
--- a/usr.sbin/pw/pw.c
+++ b/usr.sbin/pw/pw.c
@@ -422,7 +422,7 @@ cmdhelp(int mode, int which)
 			}
 		};
 
-		fprintf(stderr, help[which][mode]);
+		fprintf(stderr, "%s", help[which][mode]);
 	}
 	exit(EXIT_FAILURE);
 }