cfg.mk: fix copy-paste-o in a diagnostic

* cfg.mk (sc_space_before_open_paren): Mention cpp -fpreprocessed,
not cppi, when cpp -fpreprocessed doesn't work.
Spotted by Eric Blake.

diff --git a/cfg.mk b/cfg.mk
index 8a6adc2..0ce1c61 100644 (file)
--- a/cfg.mk
+++ b/cfg.mk
@@ -279,7 +279,8 @@ sc_space_before_open_paren:
              { echo '$(ME): the above files lack a space-before-open-paren' \
                  1>&2; exit 1; } || :;                                 \
          else                                                          \
-           echo '$(ME): skipping test $@: cppi not installed' 1>&2;    \
+           echo '$(ME): skipping test $@: cpp -fpreprocessed does not work' \
+             1>&2;                                                     \
          fi;                                                           \
        else :;                                                         \
        fi