tests: fix typo in "flagprocesor"

tests: fix typo in "flagprocesor"

--- a/tests/test-verify.t	Tue May 30 06:22:14 2017 -0700
+++ b/tests/test-verify.t	Wed May 31 10:35:10 2017 -0700
@@ -324,7 +324,7 @@
   $ cd skipflags
   $ cat >> .hg/hgrc <<EOF
   > [extensions]
-  > flagprocesor=$RUNTESTDIR/flagprocessorext.py
+  > flagprocessor=$RUNTESTDIR/flagprocessorext.py
   > EOF
   $ echo '[BASE64]content' > base64
   $ hg commit -Aqm 'flag processor content' base64