[gtksourceview] build: Include fish.lang

[Christian Hergert <chergert src gnome org>]

commit 79c9153b64c45aab0d73409e512d7e9896f6386e
Author: Frederik “Freso” S. Olesen <freso dk gmail com>
Date:   Sun Mar 17 16:07:38 2019 +0100

    build: Include fish.lang
    
    Follow-up on https://gitlab.gnome.org/GNOME/gtksourceview/merge_requests/20

 data/language-specs/Makefile.am | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/data/language-specs/Makefile.am b/data/language-specs/Makefile.am
index 335a274b..32be0147 100644
--- a/data/language-specs/Makefile.am
+++ b/data/language-specs/Makefile.am
@@ -38,6 +38,7 @@ LANGUAGES =                   \
        eiffel.lang             \
        erlang.lang             \
        fcl.lang                \
+       fish.lang               \
        forth.lang              \
        fortran.lang            \
        fsharp.lang             \