Move unified findfile() into test_support.py
diff --git a/Lib/test/test_imgfile.py b/Lib/test/test_imgfile.py
index aa9c414..b074320 100755
--- a/Lib/test/test_imgfile.py
+++ b/Lib/test/test_imgfile.py
@@ -4,7 +4,7 @@
    Roger E. Masse
 """
 
-from test_support import verbose, unlink
+from test_support import verbose, unlink, findfile
 
 import imgfile, uu, os
 
@@ -23,14 +23,6 @@
     unlink('test.rgb')
     unlink('greytest.rgb')
 
-def findfile(file):
-        if os.path.isabs(file): return file
-        import sys
-        for dn in sys.path:
-                fn = os.path.join(dn, file)
-                if os.path.exists(fn): return fn
-        return file
-
 def testimage(name):
     """Run through the imgfile's battery of possible methods
        on the image passed in name.