Bug 115249

(1) When checksum mismatch is occured and portupgrade retries to fetch mismatched distfiles,
the following error occurs and refetch fails.

--->  Retrying devel/cvs2cl
--->  Deleting mismatched files
--->  Building '/usr/ports/devel/cvs2cl'
===>  Cleaning for cvs2cl-2.67
===>  Extracting for cvs2cl-2.67
=> MD5 Checksum mismatch for cvs2cl.pl.
=> SHA256 Checksum mismatch for cvs2cl.pl.
===>  Refetch for 1 more times files: cvs2cl.pl cvs2cl.pl 
=> cvs2cl.pl doesn't seem to exist in /usr/ports/distfiles/.
=> Attempting to fetch from ftp://ftp.lab.kdd.co.jp/FreeBSD/ports/distfiles/.
env: /us/bin/fetch: No such file or directory
=> Attempting to fetch from http://www.red-bean.com/cvs2cl/.
env: /us/bin/fetch: No such file or directory
=> Attempting to fetch from ftp://ftp.lab.kdd.co.jp/FreeBSD/ports/distfiles/.
env: /us/bin/fetch: No such file or directory
=> Couldn't fetch it - please try to retrieve this
=> port manually into /usr/ports/distfiles/ and try again.
*** Error code 1

Stop in /usr/local/ports/devel/cvs2cl.
*** Error code 1

Stop in /usr/local/ports/devel/cvs2cl.
** Command failed [exit code 1]: /usr/bin/script -qa /tmp/portupgrade.58159.0 env UPGRADE_TOOL=portupgrade UPGRADE_PORT=cvs2cl-2.62 UPGRADE_PORT_VER=2.62 make MASTER_SORT_REGEX= MASTER_SORT= "FETCH_CMD=/us/bin/fetch -Ap" FETCH_BEFORE_ARGS=-q DEPENDS_TARGET=package
** Fix the problem and try again.


(2) Format of "Checksum mismatch" message has been changed but portupgrade does not know it,
it fails to detect and delete the mismatched distfiles.

Fix: (1) In "rescue" clause in "build_port", "R" and "r" are removed from $fetch_cmd.
I do not know why this code exists, and removing it solves this problem.

(2) Update the "Checksum mismatch" message to the current one.



Patch attached with submission follows: