Merge branch 'mh/mingw-case-sensitive-build'

Names of MinGW header files are spelled in mixed case in some
source files, but the build host can be using case sensitive
filesystem with header files with their name spelled in all
lowercase.

* mh/mingw-case-sensitive-build:
  mingw: use lowercase includes for some Windows headers

Author: gitster

compat/win32/trace2_win32_process_info.c

@@ -3,8 +3,8 @@
 #include "../../repository.h"
 #include "../../trace2.h"
 #include "lazyload.h"
-#include <Psapi.h>
-#include <tlHelp32.h>
+#include <psapi.h>
+#include <tlhelp32.h>
 
 /*
  * An arbitrarily chosen value to limit the size of the ancestor

wrapper.c

@@ -16,7 +16,7 @@ static intmax_t count_fsync_hardware_flush;
 #ifdef HAVE_RTLGENRANDOM
 /* This is required to get access to RtlGenRandom. */
 #define SystemFunction036 NTAPI SystemFunction036
-#include <NTSecAPI.h>
+#include <ntsecapi.h>
 #undef SystemFunction036
 #endif