Move out routine to find sub-modules

src/bin/saturnin.skel

 # =====BEGIN BUILT PART=====
 #
 
+inigrep_modules() {
+    #
+    # Find existing modules (ini.d sub-folders)
+    #
+    test -d "$1" || return 0
+    find -L "$1" -mindepth 1 -maxdepth 1 -type d
+}
+
 inigrep_paths() {
     #
     # Assemble list of config paths for FFOO_CONFIG_PATH (path per line)
     user="__SATURNIN_CONFIG_USER__"
     lcal="__SATURNIN_CONFIG_LOCAL__"
     distd="__SATURNIN_SHARE__/ini.d"
-    test -d "$userd" && find -L "$userd" -mindepth 1 -maxdepth 1 -type d
+    inigrep_modules "$userd"
     echo "$user"
     echo "$lcal"
-    test -d "$distd" && find -L "$distd" -mindepth 1 -maxdepth 1 -type d
+    inigrep_modules "$distd"
 }
 
 export FFOO_PATH FFOO_CONFIG_PATH SATURNIN_VERSION SATURNIN_CACHE_HOME