我有一个安装了 Fedora 36 的系统texlive-scheme-full。我texdoc pgf在命令行中输入，但返回的文档是针对pgf-cmykshadings软件包的。我也输入texdoc -s pgf了以下内容：
1 /usr/share/texlive/texmf-dist/doc/latex/pgf-cmykshadings/pgf-cmykshadings.pdf
2 /usr/share/texlive/texmf-dist/doc/latex/pgf-pie/pgf-pie-manual.pdf
3 /usr/share/texlive/texmf-dist/doc/latex/pgf-pie/description.html
4 /usr/share/texlive/texmf-dist/doc/latex/pgf-pie/RELEASE_NOTES.md
5 /usr/share/texlive/texmf-dist/doc/latex/pgf-cmykshadings/README.md
6 /usr/share/texlive/texmf-dist/doc/latex/pgf-pie/README.md
7 /usr/share/texlive/texmf-dist/doc/latex/pgf-pie/LICENSE-GPL2.txt
8 /usr/share/texlive/texmf-dist/doc/latex/pgf-pie/LICENSE-LPPL1.3c.txt
9 /usr/share/texlive/texmf-dist/doc/latex/pgf-pie/COPYING
10 /usr/share/texlive/texmf-dist/doc/latex/pgfmorepages/pgfmorepages.pdf
11 /usr/share/texlive/texmf-dist/doc/latex/pgfornament-han/pgfornament-han_manual.pdf
12 /usr/share/texlive/texmf-dist/doc/latex/tikz-bbox/pgfmanual4bbox.pdf
13 /usr/share/texlive/texmf-dist/doc/latex/pgfornament-han/lppl-1-3c.txt
14 /usr/share/texlive/texmf-dist/doc/latex/pgfornament-han/README.md
15 /usr/share/texlive/texmf-dist/doc/latex/pgfmorepages/README
16 /usr/share/texlive/texmf-dist/doc/latex/pgfornament-han/heavenlyclouds-sample.pdf
17 /usr/share/texlive/texmf-dist/doc/latex/pgfornament-han/xiaoshan-sample.pdf
任何想法为什么 texdoc 没有返回预期手册？