[PATCH] makedumpfile: --dump-dmesg characters printing fix

[WANG Chao]

To keep the output of makedumpfile --dump-dmesg being consistent with
dmesg utility, this patch introduces two changes:

1. If a character is non-printable, print its hex value ("\\x%02x")
2. No special handling for "\n" ("\n" -> ".")

Signed-off-by: WANG Chao <chaowang at redhat.com>
---
 makedumpfile.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/makedumpfile.c b/makedumpfile.c
index ef08d91..73467ab 100644
--- a/makedumpfile.c
+++ b/makedumpfile.c
@@ -3848,12 +3848,10 @@ dump_log_entry(char *logptr, int fp)
 	sprintf(buf, "[%5lld.%06ld] ", nanos, rem/1000);
 
 	for (i = 0, p = msg; i < text_len; i++, p++) {
-		if (*p == '\n')
-			sprintf(buf, "%s.", buf);
-		else if (isprint(*p) || isspace(*p))
+		if (isprint(*p) || isspace(*p))
 			sprintf(buf, "%s%c", buf, *p);
 		else
-			sprintf(buf, "%s.", buf);
+			sprintf(buf, "%s\\x%02x", buf, *p);
 	}
 
 	sprintf(buf, "%s\n", buf);
-- 
1.8.4.2