[gspell] build: use CLEANFILES for files built by make

[Sébastien Wilmet <swilmet src gnome org>]

commit fdc40f7a50aeb8941ff592d585783651246e1a6f
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Tue Dec 20 13:30:59 2016 +0100

    build: use CLEANFILES for files built by make
    
    Best practice is to use CLEANFILES to clean stuff built by make, and
    DISTCLEANFILES only for stuff built by configure. Everyone has to run
    make and it's very unexpected for 'make clean' to not clean things it
    builds.

 testsuite/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/testsuite/Makefile.am b/testsuite/Makefile.am
index cc6934b..4384baf 100644
--- a/testsuite/Makefile.am
+++ b/testsuite/Makefile.am
@@ -55,7 +55,7 @@ insttest_PROGRAMS = $(UNIT_TEST_PROGS)
 
 test_files = $(UNIT_TEST_PROGS:=.test)
 
-DISTCLEANFILES = $(test_files)
+CLEANFILES = $(test_files)
 
 testmetadir = $(datadir)/installed-tests/$(PACKAGE)-@GSPELL_API_VERSION@
 testmeta_DATA = $(test_files)