triggers: patch regexp matches

A few triggers (most noticeably pango) had their triggers defined as a
filename containing "/lib/" appearing in the manifest.  Now that the
manifest contains relative paths, this was failing to match the "lib/"
that is now at the start of the line.

Change the expression to use ^ instead of /.

https://bugzilla.gnome.org/show_bug.cgi?id=709746

triggers/desktop-database.trigger

@@ -17,6 +17,6 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
 # IfExecutable: update-desktop-database
-# REMatch: /share/applications/.*\.desktop
+# REMatch: ^share/applications/.*\.desktop
 
 update-desktop-database -q

triggers/glib.trigger

@@ -17,6 +17,6 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
 # IfExecutable: glib-compile-schemas
-# LiteralMatch: /share/glib-2.0/schemas/
+# LiteralMatch: ^share/glib-2.0/schemas/
 
 glib-compile-schemas $JHBUILD_PREFIX/share/glib-2.0/schemas

triggers/gtk+.trigger

@@ -17,7 +17,7 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
 # IfExecutable: gtk-update-icon-cache
-# LiteralMatch: /share/icons/
+# LiteralMatch: ^share/icons/
 
 for dir in $JHBUILD_PREFIX/share/icons/*; do
   if test -f $dir/index.theme; then

triggers/immodules.trigger

@@ -17,6 +17,6 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
 # IfExecutable: gtk-query-immodules-3.0
-# REMatch: /lib.*/gtk-3\.0/3\.0\.0/immodules/.*\.so
+# REMatch: ^lib.*/gtk-3\.0/3\.0\.0/immodules/.*\.so
 
 gtk-query-immodules-3.0 --update-cache

triggers/pango.trigger

@@ -18,6 +18,6 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
 # IfExecutable: pango-querymodules
-# REMatch: /lib.*/pango/.*/modules/.*\.so
+# REMatch: ^lib.*/pango/.*/modules/.*\.so
 
 pango-querymodules --update-cache