Sort LS_COLORS before generating

Now changing the ordering of the definitions of the LS_COLORS
file will not change the output. Thus, it's easier to know if
a reorganization of LS_COLORS made unintended changes to the
results.

Makefile

@@ -8,8 +8,8 @@ clean:
 	@command rm ${FILE_NAME}.csh 2>/dev/null || true
 
 generate: clean
-	@dircolors --bourne-shell   LS_COLORS > ${FILE_NAME}.sh
-	@dircolors --c-shell        LS_COLORS > ${FILE_NAME}.csh
+	@command sort LS_COLORS | dircolors --bourne-shell - > ${FILE_NAME}.sh
+	@command sort LS_COLORS | dircolors --c-shell      - > ${FILE_NAME}.csh
 
 install: generate
 	@command cp ${FILE_NAME}.sh ${FILE_NAME}.csh ${XDG_DATA_HOME}