File no-return-in-nonvoid-function.patch of Package archer

diff --git a/readline/misc.c b/readline/misc.c
index d455832..f8292e1 100644
--- a/readline/misc.c
+++ b/readline/misc.c
@@ -212,6 +212,7 @@ rl_digit_loop ()
       if (r <= 0 || (RL_ISSTATE (RL_STATE_NUMERICARG) == 0))
         break;
     }
+    return 0;
 }
 
 /* Create a default argument. */