Use non-specific global names where possible

Use of app name when naming of global variables and/or mkit tokens makes
upgrade of the saturnin template painful and error-prone, while none of
these variables can be overriden from environment so the namespacing
advantage is vain.

mkit.ini

     etc_bc  = /etc/bash_completion.d
 
 [vars]
-    __SATCMD_CACHE_HOME__       = $HOME/.local/share/satcmd
-    __SATCMD_CONFIG_USER__      = $HOME/.satcmd
-    __SATCMD_CONFIG_LOCAL__     = [roots:etc]
-    __SATCMD_LIBEXEC__          = [roots:libexec]
-    __SATCMD_SHARE__            = [roots:share]
-    __SATCMD_SHELLFU_DIR__      = [roots:share]/shellfu
+    __SATURNIN_CACHE_HOME__     = $HOME/.local/share/satcmd
+    __SATURNIN_CONFIG_USER__    = $HOME/.satcmd
+    __SATURNIN_CONFIG_LOCAL__   = [roots:etc]
+    __SATURNIN_LIBEXEC__        = [roots:libexec]
+    __SATURNIN_SHARE__          = [roots:share]
+    __SATURNIN_SHELLFU_DIR__    = [roots:share]/shellfu
 
 [files:bin]
     src/bin/satcmd              = satcmd

src/bin/satcmd.skel

 
 SHELLFU_INIGREP_PATH="$(
     inigrep__mkpath \
-        __SATCMD_CONFIG_USER__/ini.d \
-        __SATCMD_CONFIG_USER__ \
-        __SATCMD_CONFIG_LOCAL__ \
-        __SATCMD_SHARE__/ini.d
+        __SATURNIN_CONFIG_USER__/ini.d \
+        __SATURNIN_CONFIG_USER__ \
+        __SATURNIN_CONFIG_LOCAL__ \
+        __SATURNIN_SHARE__/ini.d
 )"
 
-SHELLFU_PATH="__SATCMD_SHELLFU_DIR__"
+SHELLFU_PATH="__SATURNIN_SHELLFU_DIR__"
 SHELLFU_PRETTY_USAGE="subcommand"
-SATCMD_CACHE_HOME="__SATCMD_CACHE_HOME__"
-SATURNIN_LIBEXEC="__SATCMD_LIBEXEC__"
+SATURNIN_CACHE_HOME="__SATURNIN_CACHE_HOME__"
+SATURNIN_LIBEXEC="__SATURNIN_LIBEXEC__"
 SATURNIN_LIBEXEC_PREFIX="satcmd-"
-SATCMD_VERSION="__VERSION__"
+SATURNIN_APP_VERSION="__VERSION__"
 
 #
 # =====END BUILT PART=====
 shellfu import saturnin
 
 export SHELLFU_INIGREP_PATH SHELLFU_PATH SHELLFU_PRETTY_USAGE \
-       SATCMD_VERSION SATCMD_CACHE_HOME
+       SATURNIN_APP_VERSION SATURNIN_CACHE_HOME
 
 usage() {
     mkusage "[-d|-v] command [args...]" \
 }
 
 version_info() {
-    echo "$(basename "$0") (Spirit of your toolbox) $SATCMD_VERSION"
+    echo "$(basename "$0") (Spirit of your toolbox) $SATURNIN_APP_VERSION"
     exit "$SHELLFU_EXIT_OK"
 }
 
     -d|--debug)     export SHELLFU_DEBUG=true; shift   ;;
     -v|--verbose)   export SHELLFU_VERBOSE=true; shift ;;
     --version)      version_info                    ;;
-    --version-semver) echo "$SATCMD_VERSION"; exit ;;
+    --version-semver) echo "$SATURNIN_APP_VERSION"; exit ;;
     -*)             usage;                          ;;
     --*)            usage;                          ;;
     --)             shift; break                    ;;