[locale.moneypunct.general] Insert period at end (#7564)

Author: Andreas-Krug

source/text.tex

@@ -4468,7 +4468,7 @@
 A monetary format is a sequence of four components,
 specified by a \tcode{pattern} value \tcode{p},
 such that the \tcode{part} value \tcode{static_cast<part>(p.field[i])}
-determines the $\tcode{i}^\text{th}$ component of the format
+determines the $\tcode{i}^\text{th}$ component of the format.
 \begin{footnote}
 An array of \tcode{char},
 rather than an array of \tcode{part},