check for empty filter

OBS-URL: https://build.opensuse.org/package/show/devel:openSUSE:Factory:rpmlint/rpmlint?expand=0&rev=24

suse-filter-exception.diff

@@ -72,7 +72,7 @@ Index: Config.py
          _filters_re = '(?:' + _filters[0] + ')'
  
          for idx in range(1, len(_filters)):
-@@ -162,7 +192,24 @@ def isFiltered(s):
+@@ -162,9 +192,27 @@ def isFiltered(s):
              _filters_re = _filters_re + '|(?:' + _filters[idx] +')'
          _filters_re = re.compile(_filters_re)
  
@@ -89,11 +89,15 @@ Index: Config.py
 +        _filters_except_re = re.compile(_filters_except_re)
 +
      if not no_exception:
+-        if _filters_re.search(s):
 +
 +        if _filters_non_except_re and _filters_non_except_re.search(s):
-+            return True
+             return True
 +        if _filters_except_re and _filters_except_re.search(s):
 +            return False
-         if _filters_re.search(s):
-             return True
++        if _filters_re and _filters_re.search(s):
++            return True
++
      return False
+ 
+ # Config.py ends here