bug 366113 - mozilla-plugin.pc should not depend on mozilla-xpcom.pc

patch by braden@endoframe.com
r=bsmedberg

build/unix/mozilla-plugin.pc.in

@@ -6,5 +6,5 @@ includedir=%includedir%
 Name: Mozilla Plug-In API
 Description: Mozilla Plug-In API
 Version: %MOZILLA_VERSION%
-Requires: %MOZ_APP_NAME%-xpcom = %MOZILLA_VERSION%
+Requires: %NSPR_NAME% >= %NSPR_VERSION%
 Cflags: -I${includedir}/java -I${includedir}/plugin