[PATCH] msi: Initialize [out] strings to NULL.

[Zebediah Figura]

Fixes https://bugs.winehq.org/show_bug.cgi?id=45073

Signed-off-by: Zebediah Figura 
---
 dlls/msi/custom.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dlls/msi/custom.c b/dlls/msi/custom.c
index 0a82fc8..4f386ce 100644
--- a/dlls/msi/custom.c
+++ b/dlls/msi/custom.c
@@ -491,10 +491,10 @@ UINT __wine_msi_call_dll_function(const GUID *guid)
     RPC_WSTR binding_str;
     MSIHANDLE hPackage;
     RPC_STATUS status;
+    LPWSTR dll = NULL;
+    LPSTR proc = NULL;
     HANDLE hModule;
     HANDLE thread;
-    LPWSTR dll;
-    LPSTR proc;
     INT type;
     UINT r;