* config.c (store_write_pair): Don't read value[-1].

Signed-off-by: Jim Meyering <meyering@redhat.com>
---
 config.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/config.c b/config.c
index ed96213..6031b38 100644
--- a/config.c
+++ b/config.c
@@ -652,7 +652,7 @@ static int store_write_pair(int fd, const char* key, const char* value)
 	for (i = 0; value[i]; i++)
 		if (value[i] == ';' || value[i] == '#')
 			quote = 1;
-	if (value[i-1] == ' ')
+	if (i && value[i-1] == ' ')
 		quote = 1;

 	if (write_in_full(fd, "\t", 1) != 1 ||
--
1.5.3.7.1116.gae2a9
-
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