[Automake-NG] [PATCH 19/19] [ng] cosmetics: improve a comment

[Stefano Lattarini]

* lib/am/parallel-tests.am (am.test-suite.test-bases): About this variable.

Signed-off-by: Stefano Lattarini <address@hidden>
---
 lib/am/parallel-tests.am | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/am/parallel-tests.am b/lib/am/parallel-tests.am
index e2ca4d3..ac62fbc 100644
--- a/lib/am/parallel-tests.am
+++ b/lib/am/parallel-tests.am
@@ -277,7 +277,9 @@ END { \
 # Restructured Text title.
 am.test-suite.rst-title = { sed 's/.*/   &   /;h;s/./=/g;p;x;s/ *$$//;p;g' && 
echo; }
 
-# This supports runtime overriding of $(TESTS) and $(XFAIL_TESTS).
+# These support runtime overriding of $(TESTS) and $(XFAIL_TESTS).
+# The first one must be left overridable (hence the definition with '?=',
+# because the 'recheck' target need to override  it (and in a tricky way).
 !am.test-suite.test-bases ?= \
 !  $(call am.memoize,am.test-suite.test-bases,$(call 
am.test-suite.get-test-bases,$(TESTS)))
 am.test-suite.xfail-test-bases = \
-- 
1.7.12.rc0