[tz] [PROPOSED 4/6] Improve white-space.ck 'make' log

[Paul Eggert via tz]

* Makefile (white-space.ck): Use make substitution,
not shell substitution, to omit leap-seconds.list.
This makes the output of 'make' easier to understand.
---
 Makefile | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index 079bb530..741c730b 100644
--- a/Makefile
+++ b/Makefile
@@ -889,11 +889,9 @@ character-set.ck: $(ENCHILADA)
 
 white-space.ck: $(ENCHILADA)
        $(UTF8_LOCALE_MISSING) || { \
-               enchilada='$(ENCHILADA)' && \
                patfmt=' \t|[\f\r\v]' && pat=$$(printf "$$patfmt\\n") && \
                ! grep -En "$$pat|[$s]\$$" \
-                   $${enchilada%leap-seconds.list*} \
-                   $${enchilada#*leap-seconds.list}; \
+                   $(ENCHILADA:leap-seconds.list=); \
        }
        touch $@
 
-- 
2.48.1