[Toybox] [PATCH] add missing argument to error_msg call in sysctl's process_key

[enh]

diff --git a/toys/other/sysctl.c b/toys/other/sysctl.c
index 8e57ca1..3c12058 100644
--- a/toys/other/sysctl.c
+++ b/toys/other/sysctl.c
@@ -97,8 +97,7 @@ static void process_key(char *key, char *value)

   if (!value) value = split_key(key);
   if ((toys.optflags & FLAG_w) && !value) {
-    error_msg("'%s' not key=value");
-
+    error_msg("'%s' not key=value", key);
     return;
   }

 1424928990.0