/usr/share/man/man1/bowtie-build-debug.1.gz is in bowtie 1.2.2+dfsg-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man1/bowtie-build.1.gz
/usr/share/man/man1/bowtie-build.1.gz