libprefs: fix SOURCE_URI.
libprefs: fix SOURCE_URI.
haikuports/haikuports,Begasus/haikuports,Begasus/haikuports,haikuports/haikuports,nielx/haikuports,haikuports/haikuports,Begasus/haikuports,nielx/haikuports,moochris/haikuports,haikuports/haikuports,Begasus/haikuports,Begasus/haikuports,moochris/haikuports,haikuports/haikuports,moochris/haikuports,nielx/haikuports