[iostate.flags] Add period at end of "Returns" (#8026)

Andreas-Krug · web-flow · commit abe616528d5f · 2025-06-27T13:12:54.000+02:00
diff --git a/source/iostreams.tex b/source/iostreams.tex
@@ -2316,7 +2316,7 @@
 \begin{itemdescr}
 \pnum
 \returns
-\tcode{rdstate() == 0}
+\tcode{rdstate() == 0}.
 \end{itemdescr}
 
 \indexlibrarymember{eof}{basic_ios}%
