[nongnu] elpa/devil 15404c639b: Revert to checking exit status in sentence tests

[ELPA Syncer]

branch: elpa/devil
commit 15404c639b52a9eef0da650d73a84e67429ef849
Author: Susam Pal <susam@susam.net>
Commit: Susam Pal <susam@susam.net>

    Revert to checking exit status in sentence tests
    
    This reverts commit 34db83149ef14a1400b1d1334c248abe1cb99855.
---
 Makefile | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/Makefile b/Makefile
index 838b56a3fb..e147460842 100644
--- a/Makefile
+++ b/Makefile
@@ -1,10 +1,10 @@
 checks: tests test-sentence-ends
 
 test-sentence-ends:
-       ! grep -n '[^0-9]\. [^ lswxz.,"(]' MANUAL.org
-       ! grep -n '\. [^ a]' README.org CHANGES.org LICENSE.org
-       ! grep -n '\. [^ m]' *.el
-       ! grep -n '[?!] [^ ]' *.org *.el
+       grep -n '[^0-9]\. [^ lswxz.,"(]' MANUAL.org; [ $$? = 1 ]
+       grep -n '\. [^ a]' README.org CHANGES.org LICENSE.org; [ $$? = 1 ]
+       grep -n '\. [^ m]' *.el; [ $$? = 1 ]
+       grep -n '[?!] [^ ]' *.org *.el; [ $$? = 1 ]
 
 tests:
        emacs --batch -l devil.el -l devil-tests.el -f 
ert-run-tests-batch-and-exit