Porting/bisect-runner.pl - Fix grammar

diff --git a/Porting/bisect-runner.pl b/Porting/bisect-runner.pl
index 6987a90..5f78cf9 100755 (executable)
--- a/Porting/bisect-runner.pl
+++ b/Porting/bisect-runner.pl
@@ -624,7 +624,7 @@ file is fed to C<patch -p1> on standard input. For C<=~>, the patch is
 applied if no lines match the pattern.
 
 As the empty pattern in Perl is a special case (it matches the most recent
-successful match) which is not useful here, an the treatment of empty pattern
+successful match) which is not useful here, the treatment of an empty pattern
 is special-cased. C<I<filename> =~ //> applies the patch if filename is
 present. C<I<filename> !~ //> applies the patch if filename missing. This
 makes it easy to unconditionally apply patches to files, and to use a patch