build: stop earlier if touching ChangeLog fails

* bootstrap.conf: Exit right away if touching ChangeLog fails.
Otherwise, the touch failure message is buried under configure output.

diff --git a/bootstrap.conf b/bootstrap.conf
index 991e5bd45f72109c729a38f12632f88510fef4b4..7ec4b3b473d40d1f2a48303bec91a2bf9fd1d0f7 100644 (file)
--- a/bootstrap.conf
+++ b/bootstrap.conf
@@ -316,4 +316,4 @@ tar        -
 "
 
 # Automake requires that ChangeLog exist.
-touch ChangeLog
+touch ChangeLog || exit 1