setupapi/tests: Write-strings warnings fix (2 of 2)

[Andrew Talbot]

Changelog:
    setupapi/tests: Write-strings warnings fix.

diff -urN a/dlls/setupapi/tests/query.c b/dlls/setupapi/tests/query.c
--- a/dlls/setupapi/tests/query.c	2006-05-23 13:48:37.000000000 +0100
+++ b/dlls/setupapi/tests/query.c	2006-08-05 17:21:53.000000000 +0100
@@ -107,7 +107,7 @@
     return ret;
 }
 
-static PSP_INF_INFORMATION alloc_inf_info(LPSTR filename, DWORD search, PDWORD size)
+static PSP_INF_INFORMATION alloc_inf_info(LPCSTR filename, DWORD search, PDWORD size)
 {
     PSP_INF_INFORMATION info;
     BOOL ret;