Makefile: fix whitespace in first $(E) argument

When silent make rules are enabled, we use special format
to inform what is going on, like this

$(E) "  ACTION  " files

We maintain specific whitespace around ACTION so different ones
are aligned nicely. Fix two places that were not aligned to the rest.
Signed-off-by: Kir Kolyshkin <kir@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

Makefile

@@ -184,12 +184,12 @@ distclean: clean
 	$(Q) $(RM) ./cscope*
 
 tags:
-	$(E) "  GEN" $@
+	$(E) "  GEN     " $@
 	$(Q) $(RM) tags
 	$(Q) $(FIND) . -name '*.[hcS]' ! -path './.*' -print | xargs ctags -a
 
 cscope:
-	$(E) "  GEN" $@
+	$(E) "  GEN     " $@
 	$(Q) $(FIND) . -name '*.[hcS]' ! -path './.*' -print > cscope.files
 	$(Q) $(CSCOPE) -bkqu