dispatch: mark callcatch() as a private function

mercurial/dispatch.py

@@ -258,9 +258,9 b' def _runcatch(req):'
             ui.traceback()
             raise
 
-    return callcatch(ui, _runcatchfunc)
+    return _callcatch(ui, _runcatchfunc)
 
-def callcatch(ui, func):
+def _callcatch(ui, func):
     """like scmutil.callcatch but handles more high-level exceptions about
     config parsing and commands. besides, use handlecommandexception to handle
     uncaught exceptions.

tests/test-devel-warnings.t

@@ -89,7 +89,7 b''
    */mercurial/dispatch.py:* in run (glob)
    */mercurial/dispatch.py:* in dispatch (glob)
    */mercurial/dispatch.py:* in _runcatch (glob)
-   */mercurial/dispatch.py:* in callcatch (glob)
+   */mercurial/dispatch.py:* in _callcatch (glob)
    */mercurial/scmutil.py* in callcatch (glob)
    */mercurial/dispatch.py:* in _runcatchfunc (glob)
    */mercurial/dispatch.py:* in _dispatch (glob)
@@ -120,7 +120,7 b''
    */mercurial/dispatch.py:* in run (glob)
    */mercurial/dispatch.py:* in dispatch (glob)
    */mercurial/dispatch.py:* in _runcatch (glob)
-   */mercurial/dispatch.py:* in callcatch (glob)
+   */mercurial/dispatch.py:* in _callcatch (glob)
    */mercurial/scmutil.py* in callcatch (glob)
    */mercurial/dispatch.py:* in _runcatchfunc (glob)
    */mercurial/dispatch.py:* in _dispatch (glob)
@@ -141,7 +141,7 b''
    */mercurial/dispatch.py:* in run (glob)
    */mercurial/dispatch.py:* in dispatch (glob)
    */mercurial/dispatch.py:* in _runcatch (glob)
-   */mercurial/dispatch.py:* in callcatch (glob)
+   */mercurial/dispatch.py:* in _callcatch (glob)
    */mercurial/scmutil.py* in callcatch (glob)
    */mercurial/dispatch.py:* in _runcatchfunc (glob)
    */mercurial/dispatch.py:* in _dispatch (glob)