Change to make html_quote not quote the ampersand in nbsp

Yep, brute force *and* ugly, but it appears to be the simplest way
to get the behaviour without working up a complex quote routine.
bug 272608, r=cls


git-svn-id: svn://10.0.0.236/trunk@247702 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/webtools/bonsai/globals.pl

@@ -1287,6 +1287,7 @@ sub html_quote {
     $var =~ s/</\&lt;/g;
     $var =~ s/>/\&gt;/g;
     $var =~ s/\@/\&#64;/g;
+    $var =~ s/\&amp;nbsp;/\&nbsp;/g;
     return $var;
 }