change default lang of patacrep template to french

templates/patacrep.tmpl

@@ -28,7 +28,7 @@
 %%:  {"name":"title", "description":"Title", "default":"Recueil de chansons pour guitare", "mandatory":true},
 %%:  {"name":"author", "description":"Author", "default":"Romain Goffe \\and Alexandre Dupas", "mandatory":true},
 %%:  {"name":"booktype", "description":"Type", "type":"enum", "values":["chorded","lyric"], "default":"chorded", "mandatory":true},
-%%:  {"name":"lang", "description":"Language", "default":"english"},
+%%:  {"name":"lang", "description":"Language", "default":"french"},
 %%:  {"name":"bookoptions", "description":"Options", "type":"flag", "values":["diagram","lilypond","pictures","tabs"], "join":",", "mandatory":true, "default":["diagram","pictures"]},
 %%:  {"name":"version", "description":"Version", "default":"3.3.10"},
 %%:  {"name":"subtitle", "description":"Subtitle"},