patch 8.2.1173: tee doesn't build on some systems

Problem:    Tee doesn't build on some systems.
Solution:   Include header files. (Dominique Pelle, closes #6431)

src/tee/tee.c

@@ -32,6 +32,8 @@
 #endif
 #include <malloc.h>
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 #include <fcntl.h>
 
 #ifdef _WIN32
@@ -132,9 +134,11 @@ main(int argc, char *argv[])
 			exit(1);
 		}
 	}
+#ifdef _WIN32
 	setmode(fileno(stdin),  O_BINARY);
 	fflush(stdout);	/* needed for _fsetmode(stdout) */
 	setmode(fileno(stdout),  O_BINARY);
+#endif
 
 	while ((n = myfread(buf, sizeof(char), sizeof(buf), stdin)) > 0)
 	{

src/version.c

@@ -754,6 +754,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1173,
 /**/
     1172,
 /**/