honggfuzz: set mask instead of modyfying it
diff --git a/honggfuzz.c b/honggfuzz.c
index 2f8755c..81702a5 100644
--- a/honggfuzz.c
+++ b/honggfuzz.c
@@ -125,8 +125,8 @@
     sigaddset(&ss, SIGPIPE);
     sigaddset(&ss, SIGIO);
     sigaddset(&ss, SIGCHLD);
-    if (sigprocmask(SIG_BLOCK, &ss, NULL) != 0) {
-        PLOG_F("pthread_sigmask(SIG_BLOCK)");
+    if (sigprocmask(SIG_SETMASK, &ss, NULL) != 0) {
+        PLOG_F("pthread_sigmask(SIG_SETMASK)");
     }
 }