Implement svnadmin verify --keep-going, which would continue the verification even if there is some corruption, after printing the errors to stderr. * subversion/svnadmin/main.c (svnadmin__cmdline_options_t): (svnadmin_opt_state): Add keep-going option. (subcommand_verify): Switch to the new svn_repos_verify_fs3 function instead of svn_repos_verify_fs2, and pass the keep-going option. (repos_notify_handler): Handle svn_repos_notify_failure notification by printing warnings to stderr with the respective revision number. * subversion/include/svn_repos.h (svn_repos_notify_action_t): Add svn_repos_notify_failure to notify failure. (svn_repos_verify_fs3): Newly added to handle "keep-going" option. (svn_repos_notify_t): Add "err", the error chain which indicates what went wrong during verification. * subversion/libsvn_repos/dump.c (svn_repos_verify_fs3): Handle "keep-going". If "keep-going" is TRUE, the error message is notified and verification process continues. (notify_verification_error): New function to notify the verification failure error message. * subversion/libsvn_repos/deprecated.c (svn_repos_verify_fs2): Deprecate. Call svn_repos_verify_fs3 with keep_going as FALSE by default to keep the old default implementation. * subversion/libsvn_repos/notify.c (svn_repos_notify_create): Initialise the error chain "err" to SVN_NO_ERROR. Patch by: Prabhu Gnana Sundar Reviewed by: Stefan Sperling