Add a comment explaining why we have to check for an extra \n

diff --git a/archival/libunarchive/get_header_ar.c b/archival/libunarchive/get_header_ar.c
index 86e0bc08f2b85d8de570309ecf5f31ada41afcf0..ebb6f8cbe43754c521900ca271a14861bc8094fe 100644 (file)
--- a/archival/libunarchive/get_header_ar.c
+++ b/archival/libunarchive/get_header_ar.c
@@ -47,7 +47,9 @@ extern char get_header_ar(archive_handle_t *archive_handle)
                return(EXIT_FAILURE);
        }
 
-       /* Some ar entries have a trailing '\n' after the previous data entry */
+       /* ar header starts on an even byte (2 byte aligned)
+        * '\n' is used for padding
+        */
        if (ar.raw[0] == '\n') {
                /* fix up the header, we started reading 1 byte too early */
                memmove(ar.raw, &ar.raw[1], 59);