Use `const void*` instead of `const char*`

Use cast from `char*` to `void*` instead of union in opendir_without_gvl,
because convert from `void*` to `char*` without union in nogvl_opendir.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60875 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/dir.c b/dir.c
index eecbfe2d96..311cd54273 100644
--- a/dir.c
+++ b/dir.c
@@ -504,7 +504,7 @@ static DIR *
 opendir_without_gvl(const char *path)
 {
     if (vm_initialized) {
-	union { const char *in; void *out; } u;
+	union { const void *in; void *out; } u;
 
 	u.in = path;