help2man is built without NLS support (changing this would require adjusting
flags in help2man and adding an RDEP on p5-Locale-gettext)

Index: src/Makefile.in
--- src/Makefile.in.orig
+++ src/Makefile.in
@@ -2375,7 +2375,7 @@ merged.c: mergelex.py $(L_STEPS)
 # which can fail.
 recode.1: main.c $(top_srcdir)/configure.ac
 	$(AM_V_GEN)if ( touch $@.w && rm -f $@.w; ) >/dev/null 2>&1; then \
-	  $(top_srcdir)/build-aux/missing --run $(HELP2MAN) --locale=en_US.UTF-8 \
+	  $(top_srcdir)/build-aux/missing --run $(HELP2MAN) \
 		--name="converts files between character sets" \
 		--output=$@ ./recode$(EXEEXT); \
 	fi