Typo fix after r142663.

* GNUmakefile.list.am:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@142668 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Unreviewed buildfix for !ENABLE(INSPECTOR) platforms after r142654.

* inspector/InspectorInstrumentation.h:
(WebCore::InspectorInstrumentation::scriptsEnabled):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@142669 268f45cc-cd09-0410-ab3c-d52691b4dbfc