after

commit 3578aa9d0622817a006202634cc34d3cb7aeceb5
parent 753591348eeef53432881db373e9f668b371774d
Author: e-zk <58356365+e-zk@users.noreply.github.com>
Date:   Sat,  2 Jan 2021 20:15:39 +1000

output usage to stderr

Diffstat:
M
after.c
 | 
5
++---

1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/after.c b/after.c
@@ -4,11 +4,11 @@
 #include <err.h>
 #include <fcntl.h>
 #include <kvm.h>
+#include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
-#include <limits.h>
 
 char *progname;
 int verbose;
@@ -16,7 +16,7 @@ int verbose;
 void
 usage(char *progname)
 {
-	printf("usage: %s [-h] [-v] [-p pid | -n process_name] -e string\n",
+	fprintf(stderr, "usage: %s [-h] [-v] [-p pid | -n process_name] -e string\n",
                 progname);
 }
 
@@ -138,7 +138,6 @@ main(int argc, char *argv[])
 		sleep(1);
 	}
 
-
 	debug_print("process not in process list (died?).");
 	printf("%s\n", cmd);