Shell: dramatically increased performance and simplicity of pacman-files.

.shell.d/funs_pacman

@@ -46,7 +46,7 @@ pacman-files()
         echo -e "  $1 [-n] PACKAGES"
         echo
         echo "Usage:"
-        echo -e "  default:\tDisplay file size of PACKAGES."
+        echo -e "  default:\tDisplay size of files in PACKAGES."
         echo -e "  -h:\t\tDisplay this help."
         echo -e "  -n:\t\tSort by size."
     }
@@ -82,11 +82,7 @@ pacman-files()
         return 1
     fi
 
-    local RESULT_HUMAN="$(du -bh $(pacman -Qlq "$@" | grep -v ".*/$" | sort -u) | eval ${OPTION_SORT})"
-    local RESULT="$(du -b $(pacman -Qlq "$@" | grep -v ".*/$" | sort -u))"
-    echo "${RESULT_HUMAN}"
-
-    echo "$RESULT" | awk -F "[[:alpha:]]" '{TOTAL=$1+TOTAL} END {printf("Total:  %d KiB\n",TOTAL/1024)}'
+    du -bch $(pacman -Qlq "$@" | grep -v ".*/$" | sort -u) 2>/dev/null | eval ${OPTION_SORT}
 }
 
 ## Retrieve official packages list.