Use --recurse-submodules instead of --recursive

The option --recursive is not documented for git >2.11 (2016),
instead --recurse-submodules should be used.

cdist/conf/type/__git/gencode-remote

@@ -35,7 +35,7 @@ owner=$(cat "$__object/parameter/owner")
 group=$(cat "$__object/parameter/group")
 mode=$(cat "$__object/parameter/mode")
 
-[ -f "$__object/parameter/recursive" ] && recursive='--recursive' || recursive=''
+[ -f "$__object/parameter/recursive" ] && recursive='--recurse-submodules' || recursive=''
 
 [ "$state_should" = "$state_is" ] \
  && [ "$owner" = "$owner_is" ] \

cdist/conf/type/__git/man.rst

@@ -36,7 +36,7 @@ owner
    User to chown to.
 
 recursive
-   Passes the --recursive flag to git when cloning the repository.
+   Passes the --recurse-submodules flag to git when cloning the repository.
 
 EXAMPLES
 --------