r300g: Add missing comma in SConscript.

This is a follow-on patch to commit
574ba4b5f50bfe661427327cd792a8a200559376.

Fixes r300g SCons build.

diff --git a/src/mesa/drivers/dri/r300/compiler/SConscript b/src/mesa/drivers/dri/r300/compiler/SConscript
index 9729441..847857b 100755 (executable)
--- a/src/mesa/drivers/dri/r300/compiler/SConscript
+++ b/src/mesa/drivers/dri/r300/compiler/SConscript
@@ -22,7 +22,7 @@ r300compiler = env.ConvenienceLibrary(
         'radeon_pair_schedule.c',
         'radeon_pair_regalloc.c',
         'radeon_optimize.c',
-        'radeon_remove_constants.c'
+        'radeon_remove_constants.c',
         'radeon_rename_regs.c',
         'radeon_emulate_branches.c',
         'radeon_emulate_loops.c',