Add mention of why malloc() has to be used in snprintf.c.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/port/snprintf.c b/src/port/snprintf.c
index d122026a3b..c48f7336dd 100644
--- a/src/port/snprintf.c
+++ b/src/port/snprintf.c
@@ -225,6 +225,7 @@ dopr(char *buffer, const char *format, va_list args, char *end)
 		if (*p == '%')			/* counts %% as two, so overcounts */
 			percents++;
 
+	/* Need to use malloc() because memory system might not be started yet. */
 	if ((fmtpar = malloc(sizeof(struct fmtpar) * percents)) == NULL)
 	{
 		fprintf(stderr, _("out of memory\n"));