msi: Declare some functions static.

dlls/msi/action.c

diff --git a/dlls/msi/action.c b/dlls/msi/action.c
index a90a81a..83ba416 100644
--- a/dlls/msi/action.c
+++ b/dlls/msi/action.c
@@ -1931,7 +1931,7 @@
     return ERROR_SUCCESS;
 }
 
-LPWSTR msi_get_disk_file_version( LPCWSTR filename )
+static LPWSTR msi_get_disk_file_version( LPCWSTR filename )
 {
     static const WCHAR name_fmt[] =
         {'%','u','.','%','u','.','%','u','.','%','u',0};
@@ -3869,7 +3869,7 @@
     return ERROR_INSTALL_SUSPEND;
 }
 
-UINT msi_set_sourcedir_props(MSIPACKAGE *package)
+static UINT msi_set_sourcedir_props(MSIPACKAGE *package)
 {
     LPWSTR p, source;
     DWORD len;

dlls/msi/events.c

diff --git a/dlls/msi/events.c b/dlls/msi/events.c
index c946512..4ddab41 100644
--- a/dlls/msi/events.c
+++ b/dlls/msi/events.c
@@ -53,7 +53,7 @@
     LPWSTR attribute;
 };
 
-UINT ControlEvent_HandleControlEvent(MSIPACKAGE *, LPCWSTR, LPCWSTR, msi_dialog*);
+static UINT ControlEvent_HandleControlEvent(MSIPACKAGE *, LPCWSTR, LPCWSTR, msi_dialog*);
 static VOID ControlEvent_CleanupDialogSubscriptions(MSIPACKAGE *package, LPWSTR dialog);
 
 /*