--- a/Makefile	Sat Apr 08 12:48:20 2017 +0200
+++ b/Makefile	Wed Apr 19 21:34:03 2017 +0900
@@ -34,9 +34,9 @@
 all: help
 
 _check_hgroot:
-	ifeq ($(HGROOT),)
-	  $(error HGROOT is not set to the root of the hg source tree)
-	endif
+ifeq ($(HGROOT),)
+	$(error HGROOT is not set to the root of the hg source tree)
+endif
 
 tests: _check_hgroot
 	cd tests && $(PYTHON) $(HGTESTS)/run-tests.py $(TESTFLAGS)