add some code comments for the users of delimcpy()

While fixing delimcpy(), I found that it wasn't always clear what its
callers did, so I've added some extra code comments.

also add a balancing '}' in a comment block to help editors that
jump between matching brackets.

1 files changed, 2 insertions, 0 deletions

diff --git a/mg.c b/mg.c
index 85e31751cf..863b5fc4c8 100644
--- a/mg.c
+++ b/mg.c
@@ -1208,6 +1208,8 @@ Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg)
 	if (s && klen == 4 && strEQ(key,"PATH")) {
 	    const char * const strend = s + len;
 
+            /* set MGf_TAINTEDDIR if any component of the new path is
+             * relative or world-writeable */
 	    while (s < strend) {
 		char tmpbuf[256];
 		Stat_t st;