Fix uninit memory read in undo code.  Fix uint32_t in proto file.
A few minor changes.
diff --git a/src/main.c b/src/main.c
index cba40ea..ec7675e 100644
--- a/src/main.c
+++ b/src/main.c
@@ -3643,7 +3643,7 @@
 # endif
 
 		/* Wait for all files to unload in remote */
-		memset(done, 0, numFiles);
+		vim_memset(done, 0, numFiles);
 		while (memchr(done, 0, numFiles) != NULL)
 		{
 # ifdef WIN32