distcc: fix upstream url

Old upstream URL was no longer valid. While we're at it, fix a few
whitespace issues.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/distcc/distcc.mk

@@ -3,9 +3,9 @@
 # distcc
 #
 #############################################################
-DISTCC_VERSION:=2.18.3
-DISTCC_SOURCE:=distcc-$(DISTCC_VERSION).tar.bz2
-DISTCC_SITE:=http://distcc.samba.org/ftp/distcc/
+DISTCC_VERSION = 2.18.3
+DISTCC_SOURCE = distcc-$(DISTCC_VERSION).tar.bz2
+DISTCC_SITE = http://distcc.googlecode.com/files/
 
 DISTCC_CONF_OPT = --with-included-popt --without-gtk --without-gnome