some scons command line args were not working since recent changes-

scons CCFLAGS="-O0 -ggdp3" 
for example would pass on the args including the "'s to scons, causing the build to fail.

tools/Blender.py

@@ -190,7 +190,7 @@ def setup_syslibs(lenv):
 	if lenv['OURPLATFORM'] in ('win32-vc', 'win32-mingw','linuxcross'):
 		syslibs += Split(lenv['BF_PTHREADS_LIB'])
 
-	syslibs += Split(lenv['LLIBS'])
+	syslibs += lenv['LLIBS']
 
 	return syslibs