Avoid a first-chance access violation a few lines down that happens when you lstrcat a NULL string (in the case where there are no additional parameters).
Avoid a first-chance access violation a few lines down that happens
when you lstrcat a NULL string (in the case where there are no
additional parameters).

BUG=none
TEST=windbg mini_installer.exe, should see no first-chance access violation

Review URL: http://codereview.chromium.org/408012

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@32424 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser