[nongnu] elpa/devil 9536f7da2f 1/2: Simplify sentence-end tests

[ELPA Syncer]

branch: elpa/devil
commit 9536f7da2f4cbc601d0e6c8b470beec5576d309b
Author: Morgan Willcock <morgan@ice9.digital>
Commit: Morgan Willcock <morgan@ice9.digital>

    Simplify sentence-end tests
    
    Remove sub-shells and variables, and instead just check the return
    code.  A return code of 1 means that nothing matched and there was no
    error.
---
 Makefile | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/Makefile b/Makefile
index d4b048c378..e147460842 100644
--- a/Makefile
+++ b/Makefile
@@ -1,10 +1,10 @@
 checks: tests test-sentence-ends
 
 test-sentence-ends:
-       errors=$$(grep -n '[^0-9]\. [^ lswxz.,"(]' MANUAL.org); echo 
"$$errors"; [ -z "$$errors" ]
-       errors=$$(grep -n '\. [^ a]' README.org CHANGES.org LICENSE.org); echo 
"$$errors"; [ -z "$$errors" ]
-       errors=$$(grep -n '\. [^ m]' *.el); echo "$$errors"; [ -z "$$errors" ]
-       errors=$$(grep -n '[?!] [^ ]' *.org *.el); echo "$$errors"; [ -z 
"$$errors" ]
+       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