ic_sub as first data in output[] eg. after an ic_push doesn't clear the previously added section correctly

[kendownie]

I've added a very hacky line in ic_sub() to clear the buffer in these circumstances. There are clearly tidier ways of doing this, but I just wanted it to work! New ic_sub() below....

void ic_sub(char *resource)
{
int i;

ic_check( strlen(saved_section) + strlen(influx_tags) +strlen(saved_sub) + strlen(resource) + 9);

/* remove previously added section */
if (first_sub) {
for (i = output_char - 1; i > 0; i--) {
    if (output[i] == '\n') {
	output[i + 1] = 0;
	output_char = i + 1;
	break;
    }
}
if( i==0 ){ output_char = 0; output[output_char] = '\0'; }      // Clears previous section at start of output[]
}
first_sub = 0;

/* remove the trailing s */
strcpy(saved_sub, saved_section);
if (saved_sub[strlen(saved_sub) - 1] == 's') {
saved_sub[strlen(saved_sub) - 1] = 0;
}
output_char += sprintf(&output[output_char], "%s,%s,%s_name=%s ", saved_section, influx_tags, saved_sub, resource);
subended = 0;
DEBUG fprintf(stderr, "ic_sub(\"%s\") count=%ld\n", resource, output_char);

}