xbps-src: rename listfiles target to list-files.

xbps-src/shutils/pkgtarget_funcs.sh.in

@@ -181,7 +181,10 @@ list_pkg_files()
 	[ -z $pkg ] && msg_error "unexistent package, aborting.\n"
 
 	ver=$($XBPS_PKGDB_CMD version $pkg)
-	[ -z "$ver" ] && msg_error "$pkg is not installed.\n"
+	if [ -z "$ver" ]; then
+		msg_warn "$pkg is not installed.\n"
+		return 1
+	fi
 
 	cat $XBPS_PKGMETADIR/$pkg/flist
 }

xbps-src/xbps-src.sh.in

@@ -76,7 +76,7 @@ Targets:
  install-destdir [pkgname]    build + install into destdir.
  install [pkgname]      install-destdir + stow.
  list                   List installed packages in <masterdir>.
- listfiles <pkgname>    List installed files from <pkg>.
+ list-files <pkgname>   List installed files from <pkg>.
  make-repoidx           Build a package index for the local repository associated
                         with the master directory <masterdir> or <pkgdir>,
 		        or updates it.
@@ -380,12 +380,12 @@ install|install-destdir)
 		install_pkg $pkgname
 	fi
 	;;
-list|listfiles)
+list|list-files)
 	if [ "$target" = "list" ]; then
 		$XBPS_BIN_CMD list
-		exit $?
+	else
+		list_pkg_files $2
 	fi
-	list_pkg_files $2
 	;;
 make-repoidx)
 	if [ -n "${_PACKAGEDIR}" ]; then