bc: tweak comment

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/miscutils/bc.c b/miscutils/bc.c
index 9f05cad0c..143bb64b1 100644
--- a/miscutils/bc.c
+++ b/miscutils/bc.c
@@ -5586,8 +5586,9 @@ static char *bc_program_name(char *code, size_t *bgn)
 static void bc_program_printString(const char *str)
 {
 #if ENABLE_DC
-        // Huh? Example when this happens?
         if (!str[0]) {
+                // Example: echo '[]ap' | dc
+                // should print two bytes: 0x00, 0x0A
                 bb_putchar('\0');
                 return;
         }