tools/semver-compare.sh: add dashless aliases to expand and strip actions [networkupstools#3055]

Signed-off-by: Jim Klimov <jimklimov+nut@gmail.com>

Author: jimklimov

tools/semver-compare.sh

@@ -202,8 +202,8 @@ EOF
             # FIXME: "else" and error handling vs number too small and ignored?
             shift
             ;;
-        --expand|-x) echo "$2" | filter_add_extra_width ; shift ;;
-        --strip|+x)  echo "$2" | filter_away_leading_zeroes ; shift ;;
+        --expand|-x|expand) echo "$2" | filter_add_extra_width ; shift ;;
+        --strip|+x|strip)  echo "$2" | filter_away_leading_zeroes ; shift ;;
         --sortable-expand) printf '%s\t%s\n' "`echo \"$2\" | filter_add_extra_width`" "$2" ; shift ;;
         --sortable-strip)  printf '%s\t%s\n' "$2" "`echo \"$2\" | filter_away_leading_zeroes`" ; shift ;;
         --sort|sort)