Return 88 instead of -88 from the purify scripts since

the magic value in buildbot changed.

TEST=Buildbot will turn orange if there is a warning
BUG=None
Review URL: http://codereview.chromium.org/126048

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@18270 0039d316-1c4b-4281-b951-d872f2087c98

tools/purify/common.py

@@ -282,7 +282,7 @@ class Rational(object):
   def Analyze(self):
     '''Analyze step after a successful Execution.  Should be overridden
     by the subclasser if instrumentation is desired.
-    Returns 0 for success, -88 for warning (see ReturnCodeCommand) and anything
+    Returns 0 for success, 88 for warning (see ReturnCodeCommand) and anything
     else for error
     '''
     return -1

tools/purify/purify_analyze.py

@@ -860,7 +860,7 @@ class PurifyAnalyze:
       if fixes:
         logging.warning("%d total errors unexpectedly fixed" % fixes)
         # magic return code to turn the builder orange (via ReturnCodeCommand)
-        return -88
+        return 88
     return 0