Merge branch 'lt/readlink'

* lt/readlink: combine-diff.c: use strbuf_readlink() builtin-blame.c: use strbuf_readlink() make_absolute_path(): check bounds when seeing an overlong symlink Make 'prepare_temp_file()' ignore st_size for symlinks Make 'diff_populate_filespec()' use the new 'strbuf_readlink()' Make 'index_path()' use 'strbuf_readlink()' Make 'ce_compare_link()' use the new 'strbuf_readlink()' Add generic 'strbuf_readlink()' helper function