testsuite buildid.c: more gcc5 unwarningification

diff --git a/testsuite/systemtap.base/buildid.c b/testsuite/systemtap.base/buildid.c
index 3336cbe35d71279fe92833793e3d1890957219be..7056e4cde325fbd12aa3e3ee54ae024e32d7489f 100644 (file)
--- a/testsuite/systemtap.base/buildid.c
+++ b/testsuite/systemtap.base/buildid.c
@@ -1,5 +1,5 @@
 #ifndef ONLY_MAIN
-foo ()
+void foo ()
 {
   int x = 1;
  label: