[monodoc] Return null from GetHelpXml if node not found
authorMichael Hutchinson <m.j.hutchinson@gmail.com>
Fri, 17 May 2013 19:55:56 +0000 (15:55 -0400)
committerMichael Hutchinson <m.j.hutchinson@gmail.com>
Fri, 17 May 2013 21:16:23 +0000 (17:16 -0400)
commitf38e6bb39e4807a8eefd48a64d166cacb746cab3
treea2da89b101695811c048997ef8d76331bcce17d0
parent30705ec34e9fc9cdde0aa600ddba655abb428f58
[monodoc] Return null from GetHelpXml if node not found

Instead of exploding the XML parser by trying to parse null.
mcs/class/monodoc/Monodoc/RootTree_Legacy.cs