[macros] Avoid small caps for cross-references to C.

Fixes ISO/CS comment (C++23 proof)

Author: jensmaurer

source/macros.tex

@@ -371,7 +371,7 @@
 \newcommand{\templalias}{\Fundesc{Alias template}}
 
 %% Cross-reference
-\newcommand{\xref}[1]{\textsc{See also:}\space #1}
+\newcommand{\xref}[1]{See also #1.}
 \newcommand{\xrefc}[1]{\xref{\IsoC{}, #1}}
 \newcommand{\termref}[3]{\textit{#2}{#3}\iref{#1}} % in Clause 3