children: word-wrap help texts at 70 characters

hgext/children.py

@@ -15,11 +15,11 b' from mercurial.i18n import _'
 def children(ui, repo, file_=None, **opts):
     """show the children of the given or working dir revision
 
-    Print the children of the working directory's revisions.
-    If a revision is given via --rev, the children of that revision
-    will be printed. If a file argument is given, revision in
-    which the file was last changed (after the working directory
-    revision or the argument to --rev if given) is printed.
+    Print the children of the working directory's revisions. If a
+    revision is given via --rev, the children of that revision will be
+    printed. If a file argument is given, revision in which the file
+    was last changed (after the working directory revision or the
+    argument to --rev if given) is printed.
     """
     rev = opts.get('rev')
     if file_: