lib/40714: "%'f" works with printf(3) but not sprintf(3)

[tnn%NetBSD.org@localhost]

>Number:         40714
>Category:       lib
>Synopsis:       "%'f" works with printf(3) but not sprintf(3)
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    lib-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Feb 22 15:25:00 +0000 2009
>Originator:     Tobias Nygren
>Release:        5.99.7 amd64
>Organization:
>Environment:
>Description:
"%'f" format specifier terminates output early when used with sprintf(3) family 
of functions.

>How-To-Repeat:
The second line in the output of the following program is not printed correctly.


#include <stdio.h>
int main(void) {
        char buf[128];
        printf("test: %'f\n", 123.0f);
        sprintf(buf, "test: %'f\n", 123.0f);
        printf("%s", buf);
}

> ./test
test: 123.000000
test: 1

>Fix: