v.db.addcol renamed to v.db.addcolumn (synchronize with other modules)

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@39816 15284696-431f-4ddb-bdfa-cd5b030d7da7

scripts/Makefile

@@ -40,7 +40,7 @@ SUBDIRS = \
 	v.centroids \
 	v.colors \
 	v.convert.all \
-	v.db.addcol \
+	v.db.addcolumn \
 	v.db.addtable \
 	v.db.join \
 	v.db.dropcolumn \