fix typo

diff --git a/includes/Math.php b/includes/Math.php
index f6c869c..8ba35d0 100644 (file)
--- a/includes/Math.php
+++ b/includes/Math.php
@@ -65,7 +65,7 @@ class MathRenderer {
 
                        if ( wfIsWindows() ) {
                                # Invoke it within cygwin sh, because texvc expects sh features in its default shell
-                               $cmd = 'sh -c ' . wfwfEscapeShellArg( $cmd );
+                               $cmd = 'sh -c ' . wfEscapeShellArg( $cmd );
                        }
 
                        wfDebug( "TeX: $cmd\n" );