make store_error const-correct

diff --git a/lib/remopen.c b/lib/remopen.c
index dfe08654dec98661287e1aaded6cc31cbf618f35..b0fc64252ef96b0b0fed737aae603e2337579cf5 100644 (file)
--- a/lib/remopen.c
+++ b/lib/remopen.c
@@ -21,7 +21,7 @@
 /*
 ** store an error message in buff like libinn(3) says NNTPconnect does
 */
-static void store_error(char *buff, char *string1, char *string2) {
+static void store_error(char *buff, const char *string1, const char *string2) {
     /* we put these in [...] to make it easier to tell them apart
      * from messages sent by the server */
     snprintf(buff, NNTP_STRLEN, "[%s%s]", string1, string2);