Fix off-by-one error (CPERLIN)

CPERLIN is the chars per line without the line break chars (\r\n),
at least would that match the description in RFC 2822. Actually,
however, the max SHOULD line length (excluding line break chars)
is 78 according to the RFC. Therefore it seems as if we should
set CPERLIN to 78. (This is open to decide and to do.)

diff --git a/uip/mhoutsbr.c b/uip/mhoutsbr.c
index ba883196108c77a42dd5e81257615d9cc2a51005..87e7943c26b5b186d02a2209ab48bc16d6959e20 100644 (file)
--- a/uip/mhoutsbr.c
+++ b/uip/mhoutsbr.c
@@ -228,7 +228,7 @@ writeQuoted(CT ct, FILE *out)
                        n = 0;
                }
                for (; *cp; cp++) {
-                       if (n > CPERLIN - 3) {
+                       if (n + 1 >= CPERLIN) {
                                fputs("=\n", out);
                                n = 0;
                        }