[jhbuild] Fix Makefile syntax in sed command in Makefile.plain

[Dan Winship <danw src gnome org>]

commit 4224c51803831a26a210008380647b31289b48bf
Author: Dan Winship <danw gnome org>
Date:   Wed Jun 24 14:22:53 2009 -0400

    Fix Makefile syntax in sed command in Makefile.plain

 Makefile.plain |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/Makefile.plain b/Makefile.plain
index 9d4f5e1..aaff7ca 100644
--- a/Makefile.plain
+++ b/Makefile.plain
@@ -31,7 +31,7 @@ install: install-check
 
 	@echo "Creating $(desktopdir)/jhbuild.desktop"
 	@mkdir -p $(desktopdir)
-	@sed "s,^_,,g;s,^Exec=.*$,Exec=$(bindir)/jhbuild gui,;s,^X-GNOME-Bugzilla-Version=.*$,," \
+	@sed "s,^_,,g;s,^Exec=.*$$,Exec=$(bindir)/jhbuild gui,;s,^X-GNOME-Bugzilla-Version=.*$$,," \
 		< jhbuild.desktop.in.in > $(desktopdir)/jhbuild.desktop
 
 	@[ -f $(HOME)/.jhbuildrc ]||echo "Don't forget to create ~/.jhbuildrc"