sort gfortran correctly

pietroalbini · pietroalbini · commit d433935d321b · 2019-12-09T14:48:19.000+01:00
diff --git a/packages.txt b/packages.txt
@@ -23,8 +23,8 @@ docker.io
 dselect
 emacsen-common
 enchant
-git
 gfortran
+git
 gnupg
 golang
 gstreamer1.0-plugins-base
