[hackers] [slstatus] Fix keyboard_indicators() prototype || NRK

[git]

commit 3c47701aea6bdb1e27c9b2039c07321077764f45
Author:     NRK <nrk_AT_disroot.org>
AuthorDate: Sat Aug 27 20:40:20 2022 +0600
Commit:     drkhsh <m...@drkhsh.at>
CommitDate: Wed Oct 26 21:24:09 2022 +0200

    Fix keyboard_indicators() prototype
    
    according to both the function definition and the comment in
    config.def.h, keyboard_indicators() should take a format string.

diff --git a/slstatus.h b/slstatus.h
index b0f2564..362ca7c 100644
--- a/slstatus.h
+++ b/slstatus.h
@@ -32,7 +32,7 @@ const char *ipv6(const char *interface);
 const char *kernel_release(void);
 
 /* keyboard_indicators */
-const char *keyboard_indicators(void);
+const char *keyboard_indicators(const char *fmt);
 
 /* keymap */
 const char *keymap(void);