MDL-16078 fixed a string for error message.

lang/en_utf8/error.php

@@ -23,7 +23,7 @@
 $string['cannotaddmodule'] = '$a module could not be added to the module list!';
 $string['cannotaddnewmodule'] = 'Could not add a new module of $a';
 $string['cannotaddnewinstance'] = 'Could not add a new instance of $a';
-$string['cannotsaveconfig'] = 'Problem saving config \"$a->name\" as \"$a=>value\" for plugin \"$a->plugin\"';
+$string['cannotsaveconfig'] = 'Problem saving config \"$a->name\" as \"$a->value\" for plugin \"$a->plugin\"';
 $string['cannotsavecomment'] = 'Cannot save comment';
 $string['cannotsavefile'] = 'Cannot save the file \"$a\"!';
 $string['cannotsavedata'] = 'Cannot save data';