r.info: synchronize module description with v.info

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@49177 15284696-431f-4ddb-bdfa-cd5b030d7da7

raster/r.info/main.c

@@ -68,8 +68,9 @@ int main(int argc, char **argv)
     module = G_define_module();
     G_add_keyword(_("raster"));
     G_add_keyword(_("metadata"));
+    G_add_keyword(_("history"));
     module->description =
-	_("Output basic information about a raster map layer.");
+	_("Outputs basic information about a raster map.");
 
     opt1 = G_define_standard_option(G_OPT_R_MAP);