convert svn: minor improvement to tag detection.

convert svn: minor improvement to tag detection.
The better way is probably to list the latest tags directory and
look up the last log message for each entry. This is surprisingly
annoying to do.

--- a/hgext/convert/subversion.py	Tue Jul 03 19:49:36 2007 -0700
+++ b/hgext/convert/subversion.py	Tue Jul 03 20:22:39 2007 -0700
@@ -532,6 +532,8 @@
             orig_paths, revnum, author, date, message, pool = arg
             orig_paths = svn_paths(orig_paths)
             for path in orig_paths:
+                if not path.startswith('/tags/'):
+                    continue
                 ent = orig_paths[path]
                 source = ent.copyfrom_path
                 rev = ent.copyfrom_rev
@@ -540,7 +542,7 @@
 
         start = self.revnum(self.head)
         try:
-            svn.ra.get_log(self.ra, ['/tags'], start, 0, 1, True, False,
+            svn.ra.get_log(self.ra, ['/tags'], 0, start, 0, True, False,
                            parselogentry)
             return tags
         except SubversionException: