error in comment

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@48311 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/init/clean_temp.c

@@ -34,7 +34,7 @@
 
 extern int errno;
 
-#define SLEEP 30		/* 30 minutes */
+#define SLEEP 30		/* 30 seconds */
 
 /* Recursively scan the directory pathname, removing directory and files */