source.h: fix signal.h include

MaxDesiatov · MaxDesiatov · commit 65626f86da06 · 2023-01-18T14:29:29.000Z
diff --git a/dispatch/source.h b/dispatch/source.h
@@ -32,7 +32,7 @@
 #endif
 
 #if !defined(_WIN32)
-#include <sys/signal.h>
+#include <signal.h>
 #endif
 
 DISPATCH_ASSUME_NONNULL_BEGIN
