r.sunhours: more keywords

git-svn-id: https://svn.osgeo.org/grass/grass/branches/releasebranch_7_0@65842 15284696-431f-4ddb-bdfa-cd5b030d7da7

raster/r.sunhours/main.c

@@ -71,6 +71,8 @@ int main(int argc, char *argv[])
     module = G_define_module();
     G_add_keyword(_("raster"));
     G_add_keyword(_("solar"));
+    G_add_keyword(_("sun energy"));
+    G_add_keyword(_("sun position"));
     module->label = _("Calculates solar elevation, solar azimuth, and sun hours.");
     module->description = _("Solar elevation: the angle between the direction of the geometric center "
 			    "of the sun's apparent disk and the (idealized) horizon. "