All reports of package-modifies-ld.so-search-path for the archive. The extended description of this tag is:
This package installs a file in /etc/ld.so.conf.d, presumably to modify the search path of the run-time linker, and does not appear to be part of libc.
Packages containing shared libraries should either install them into /usr/lib or should require binaries built against them to set RPATH to find the library at run-time. Installing libraries in a different directory and modifying the run-time linker path is equivalent to installing them into /usr/lib except now conflicting library packages may cause random segfaults and difficult-to-debug problems instead of conflicts in the package manager.
Refer to Debian Policy Manual section 10.2 (Libraries) for details.
This tag has not been emitted in any package tested by Lintian.