clients/upsstats.c: display_template(): open HTML template in binary mode, so ftell()/fseek() work predictably [networkupstools#3219]

Fix rewinding FOREACHUPS command to the correct byte location on WIN32 (or other platforms with CR vs CRLF issues).

Signed-off-by: Jim Klimov <jimklimov+nut@gmail.com>

Author: jimklimov

clients/upsstats.c

@@ -1089,7 +1089,7 @@ static void display_template(const char *tfn)
 
 	snprintf(fn, sizeof(fn), "%s/%s", confpath(), tfn);
 
-	tf = fopen(fn, "r");
+	tf = fopen(fn, "rb");
 
 	if (!tf) {
 		fprintf(stderr, "upsstats: Can't open %s: %s\n", fn, strerror(errno));