util: do not reset terminal in acquire_terminal()

Before, we'd always reset acquired terminals, which is not really
desired, as we expose a setting TTYReset= which is supposed to control
whether the TTY is reset or not. Previously that setting would only
enable a second resetting of the TTY, which is of course pointless...

Hence, move the implicit resetting out of acquire_terminal() and make
the callers do it if they need it.

src/basic/terminal-util.c

@@ -480,10 +480,6 @@ int acquire_terminal(
 
         safe_close(notify);
 
-        r = reset_terminal_fd(fd, true);
-        if (r < 0)
-                log_warning_errno(r, "Failed to reset terminal: %m");
-
         return fd;
 
 fail:
@@ -616,6 +612,10 @@ int make_console_stdio(void) {
         if (fd < 0)
                 return log_error_errno(fd, "Failed to acquire terminal: %m");
 
+        r = reset_terminal_fd(fd, true);
+        if (r < 0)
+                log_warning_errno(r, "Failed to reset terminal, ignoring: %m");
+
         r = make_stdio(fd);
         if (r < 0)
                 return log_error_errno(r, "Failed to duplicate terminal fd: %m");