increase buffer size, https://trac.osgeo.org/grass/ticket/2235

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@59389 15284696-431f-4ddb-bdfa-cd5b030d7da7

raster/r.param.scale/interface.c

@@ -38,7 +38,7 @@ void interface(int argc, char **argv)
 
     /* cell of local window if selected.    */
     struct GModule *module;	/* GRASS module description */
-    char buf[4];
+    char buf[24];
 
     G_gisinit(argv[0]);		/* GRASS function which MUST be called  */
     /* first to check for valid database    */