[locale.facet] Avoid improperly defining explicit

Author: frederick-vs-ja

source/text.tex

@@ -803,7 +803,7 @@
 Constructors of all facets defined in this Clause
 take such an argument and pass it along to
 their \tcode{facet} base class constructor.
-All one-argument constructors defined in this Clause are \term{explicit},
+All one-argument constructors defined in this Clause are explicit,
 preventing their participation in implicit conversions.
 
 \pnum