Log server pushed

Now that "adb push" stdout is disabled, add a log to notify server
pushed.

app/src/sys/win/process.c

@@ -90,11 +90,8 @@ sc_process_execute_p(const char *const argv[], HANDLE *handle, unsigned inherit,
     HANDLE handles[3];
 
     LPPROC_THREAD_ATTRIBUTE_LIST lpAttributeList = NULL;
-    // Must be set even if handle_count == 0, so that stdin, stdout and stderr
-    // are NOT inherited in that case
-    si.StartupInfo.dwFlags = STARTF_USESTDHANDLES;
-
     if (handle_count) {
+        si.StartupInfo.dwFlags = STARTF_USESTDHANDLES;
         unsigned i = 0;
         if (pin) {
             si.StartupInfo.hStdInput = stdin_read_handle;
@@ -155,7 +152,9 @@ sc_process_execute_p(const char *const argv[], HANDLE *handle, unsigned inherit,
     }
 
     BOOL bInheritHandles = handle_count > 0;
-    DWORD dwCreationFlags = handle_count > 0 ? EXTENDED_STARTUPINFO_PRESENT : 0;
+    // DETACHED_PROCESS to disable stdin, stdout and stderr
+    DWORD dwCreationFlags = handle_count == 0 ? DETACHED_PROCESS
+                                              : EXTENDED_STARTUPINFO_PRESENT;
     BOOL ok = CreateProcessW(NULL, wide, NULL, NULL, bInheritHandles,
                              dwCreationFlags, NULL, NULL, &si.StartupInfo, &pi);
     free(wide);