tests: fix botched heading comments in 'lex-clean-cxx.sh'

* t/lex-clean-cxx.sh: This file tests lex, not yacc.

Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>

diff --git a/t/lex-clean-cxx.sh b/t/lex-clean-cxx.sh
index d1a745b..8834a74 100755 (executable)
--- a/t/lex-clean-cxx.sh
+++ b/t/lex-clean-cxx.sh
@@ -14,10 +14,9 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-# Check that C++ source and header files derived from non-distributed
-# Yacc sources are cleaned by "make clean", while C++ source and
-# header files derived from distributed Yacc sources are cleaned by
-# "make maintainer-clean".
+# Check that C++ source files derived from non-distributed Lex sources
+# are cleaned by "make clean", while C++ source files derived from
+# distributed Lex sources are cleaned by "make maintainer-clean".
 # See also sister test 'lex-clean.test'.
 
 required='c++ lex'