[Toybox] [PATCH] sh: fflush(stdout) to make sure that prompt is shown

[Patrick Oppenlander]

Found when testing with musl v1.1.19 on arm.

---
 toys/pending/sh.c | 1 +
 1 file changed, 1 insertion(+)
diff --git a/toys/pending/sh.c b/toys/pending/sh.c
index 0bfd32c..efa5c96 100644
--- a/toys/pending/sh.c
+++ b/toys/pending/sh.c
@@ -307,6 +307,7 @@ static void do_prompt(void)
 down:
     putchar(c);
   }
+  fflush(stdout);
 }
 
 void sh_main(void)
--
2.17.0
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