distr_info: resort functions

bin/distr_info

@@ -591,9 +591,6 @@ fi
 
 }
 
-fill_distr_info
-[ -n "$DISTRIB_ID" ] || DISTRIB_ID="Generic"
-
 get_uname()
 {
     tolower "$(uname $1)" | tr -d " \t\r\n"
@@ -896,15 +893,8 @@ Distro name / version (--distro-name/version): $DISTRO_NAME / $DISTRIB_FULL_RELE
 EOF
 }
 
-case "$2" in
-    -*)
-        echo "Unsupported option $2" >&2
-        exit 1
-        ;;
-esac
-
-case "$1" in
-    -h|--help)
+print_help()
+{
     echo "distro_info v$PROGVERSION - distro information retriever"
     echo "Usage: distro_info [options] [SystemName/Version]"
     echo "Options:"
@@ -934,6 +924,22 @@ case "$1" in
     echo " --build-id             - print a string uniquely identifying the system image originally used as the installation base"
     echo " -V                     - print the utility version"
     echo "Run without args to print all information."
+}
+
+fill_distr_info
+[ -n "$DISTRIB_ID" ] || DISTRIB_ID="Generic"
+
+
+case "$2" in
+    -*)
+        echo "Unsupported option $2" >&2
+        exit 1
+        ;;
+esac
+
+case "$1" in
+    -h|--help)
+        print_help
         exit 0
         ;;
     -p|--package-type)