[PATCH v3 2/2] Explicitly `fflush` stdout before expecting interactive input

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From: =?UTF-8?q?=EB=A7=88=EB=88=84=EC=97=98?= <nalla@xxxxxxxxxxxxxxxxxx>

At least one interactive command writes a prompt to `stdout` and then
reads user input on `stdin`: `git clean --interactive`. If the prompt is
left in the buffer, the user will not realize the program is waiting for
their input.

So let's just flush `stdout` before reading the user's input.

Signed-off-by: 마누엘 <nalla@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Johannes Schindelin <johannes.schindelin@xxxxxx>
---
 prompt.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/prompt.c b/prompt.c
index 098dcfb7cf9..5ded21a017f 100644
--- a/prompt.c
+++ b/prompt.c
@@ -77,8 +77,10 @@ char *git_prompt(const char *prompt, int flags)
 
 int git_read_line_interactively(struct strbuf *line)
 {
-	int ret = strbuf_getline_lf(line, stdin);
+	int ret;
 
+	fflush(stdout);
+	ret = strbuf_getline_lf(line, stdin);
 	if (ret != EOF)
 		strbuf_trim_trailing_newline(line);
 
-- 
gitgitgadget



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