[streambuf.locales] clarify boolean expression

Eisenwave · Eisenwave · commit 1b009f5322a6 · 2023-08-30T13:28:02.000+02:00
diff --git a/source/iostreams.tex b/source/iostreams.tex
@@ -3198,7 +3198,7 @@
 
 \pnum
 \ensures
-\tcode{loc == getloc()}.
+\tcode{loc == getloc()} is \keyword{true}.
 
 \pnum
 \returns
