Fix a whitespace-o in Makefile.in

Author: Tadeusz Sośnierz

build/Makefile.in

@@ -367,7 +367,7 @@ $(OPS_DIR)/$(OPS)$(LOAD_EXT): $(OPS_DIR)/$(OPS_SOURCE) $(DYNPMC)
 	cd src/metamodel/reprs && $(CC) -c @cc_o_out@P6int$(O) -I../../../$(PMC_DIR) $(CINCLUDES) $(CFLAGS) P6int.c
 	cd src/metamodel/reprs && $(CC) -c @cc_o_out@P6str$(O) -I../../../$(PMC_DIR) $(CINCLUDES) $(CFLAGS) P6str.c
 	cd src/metamodel/reprs && $(CC) -c @cc_o_out@P6num$(O) -I../../../$(PMC_DIR) $(CINCLUDES) $(CFLAGS) P6num.c
-    cd src/metamodel && $(CC) -c @cc_o_out@multi_dispatch$(O) -I../../$(PMC_DIR) $(CINCLUDES) $(CFLAGS) multi_dispatch.c
+	cd src/metamodel && $(CC) -c @cc_o_out@multi_dispatch$(O) -I../../$(PMC_DIR) $(CINCLUDES) $(CFLAGS) multi_dispatch.c
 	cd $(OPS_DIR) && $(LD) @ld_out@$(OPS)$(LOAD_EXT) $(OPS)$(O) $(METAMODEL_OBJS) $(LINKARGS)
 
 bootstrap-files: $(STAGE2_PBCS) $(SETTING_NQP)