g.gui.gmodeler: substitute all occurrences of variable in command (bugfix) (merge https://trac.osgeo.org/grass/changeset/68848 from trunk)

git-svn-id: https://svn.osgeo.org/grass/grass/branches/releasebranch_7_0@68850 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/gmodeler/model.py

@@ -1152,7 +1152,6 @@ class ModelAction(ModelObject, ogl.DividedShape):
                 for idx in range(len(cmd)):
                     if pattern.search(cmd[idx]):
                         cmd[idx] = pattern.sub(value, cmd[idx])
-                        break
                     idx += 1
         
         if string: