[hackers] [sbase] Fix line buffering issue with ed prompt || Samadi van Koten

[git]

commit 44ccadcde30136253b7623a8eb2f17883d725d43
Author:     Samadi van Koten <sam...@vktec.co.uk>
AuthorDate: Sun Jan 28 14:51:38 2018 +0000
Commit:     Michael Forney <mfor...@mforney.org>
CommitDate: Fri Feb 23 23:58:29 2018 -0800

    Fix line buffering issue with ed prompt
    
    This fixes an issue whereby ed would not output the prompt (when
    enabled) until after exitting due to stdout being line-buffered.

diff --git a/ed.c b/ed.c
index 4b28848..f45535c 100644
--- a/ed.c
+++ b/ed.c
@@ -1374,8 +1374,10 @@ edit(void)
                ocurln = curln;
                cmdsiz = 0;
                repidx = -1;
-               if (optprompt)
+               if (optprompt) {
                        fputs(prompt, stdout);
+                       fflush(stdout);
+               }
                getlst();
                chkglobal() ? doglobal() : docmd();
        }