i3 - improved tiling WM

Bug fix: Call clear_input() when password is wrong and not in every fork.

Patch status: needinfo

Patch by oblique

Long description:

a305e62 called clear_input() after it forks, as a result the "wrong!"
message didn't show up when the password was wrong.

To apply this patch, use:
curl http://cr.i3wm.org/patch/270/raw.patch | git am

b/i3lock.c

16 
@@ -205,6 +205,7 @@ static void auth_failed(void) {
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         fprintf(stderr, "Authentication failure\n");
18
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     pam_state = STATE_PAM_WRONG;
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+    clear_input();
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     redraw_screen();
22
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     /* Clear this state after 2 seconds (unless the user enters another
24 
@@ -258,7 +259,6 @@ static void input_done(void) {
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     if (cpid == 0) {
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         exit(pam_authenticate(pam_handle, 0) == PAM_SUCCESS);
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     } else if (cpid > 0) {
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-        clear_input();
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         struct ev_child *child_watcher = calloc(sizeof(struct ev_io), 1);
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         ev_child_init(child_watcher, child_cb, cpid, 0);
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         ev_child_set(child_watcher, cpid, 0);