iptables: do not print trailing whitespaces

Due to the use of printf("foobar "), iptables emits spaces at the
end-of-line, which looks odd to some users because it causes the
terminal to wrap even if there is seemingly nothing to print.

It may also have other points of annoyance, such as mailers
interpreting a trailing space as an indicator that the paragraph
continues when format=flowed is also on.
And git highlights trailing spaces in red, so let's avoid :)

Preexisting inconsistencies in outputting spaces in the right
spot are also addressed right away.

References: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=429579
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>

1 files changed, 5 insertions, 5 deletions

diff --git a/extensions/libxt_limit.c b/extensions/libxt_limit.c
index a62d1990..c4ba58bb 100644
--- a/extensions/libxt_limit.c
+++ b/extensions/libxt_limit.c
@@ -134,24 +134,24 @@ static void print_rate(uint32_t period)
             || rates[i].mult/period < rates[i].mult%period)
 			break;
 
-	printf("%u/%s ", rates[i-1].mult / period, rates[i-1].name);
+	printf(" %u/%s", rates[i-1].mult / period, rates[i-1].name);
 }
 
 static void
 limit_print(const void *ip, const struct xt_entry_match *match, int numeric)
 {
 	const struct xt_rateinfo *r = (const void *)match->data;
-	printf("limit: avg "); print_rate(r->avg);
-	printf("burst %u ", r->burst);
+	printf(" limit: avg"); print_rate(r->avg);
+	printf(" burst %u", r->burst);
 }
 
 static void limit_save(const void *ip, const struct xt_entry_match *match)
 {
 	const struct xt_rateinfo *r = (const void *)match->data;
 
-	printf("--limit "); print_rate(r->avg);
+	printf(" --limit"); print_rate(r->avg);
 	if (r->burst != XT_LIMIT_BURST)
-		printf("--limit-burst %u ", r->burst);
+		printf(" --limit-burst %u", r->burst);
 }
 
 static struct xtables_match limit_match = {