FYI FreeBSD clang build fails on new import of sort

trying to rerun a clang build of FreeBSD CURRENT fails on new import of sort,

cat /etc/src.conf
WITH_CLANG_IS_CC=1
make world
---------------------SNIP---------------------------
clang -O2 -pipe  -DSORT_THREADS -std=gnu99 -Qunused-arguments
-fstack-protector -Wsystem-headers -Werror -Wall -Wno-format-y2k -W
-Wno-unused-parameter -Wstrict-prototypes -Wmissing-prototypes
-Wpointer-arith -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch
-Wshadow -Wunused-parameter -Wcast-align -Wchar-subscripts -Winline
-Wnested-externs -Wredundant-decls -Wold-style-definition
-Wno-pointer-sign -Wno-empty-body -Wno-string-plus-int -c
/usr/src/usr.bin/sort/coll.c
clang -O2 -pipe  -DSORT_THREADS -std=gnu99 -Qunused-arguments
-fstack-protector -Wsystem-headers -Werror -Wall -Wno-format-y2k -W
-Wno-unused-parameter -Wstrict-prototypes -Wmissing-prototypes
-Wpointer-arith -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch
-Wshadow -Wunused-parameter -Wcast-align -Wchar-subscripts -Winline
-Wnested-externs -Wredundant-decls -Wold-style-definition
-Wno-pointer-sign -Wno-empty-body -Wno-string-plus-int -c
/usr/src/usr.bin/sort/file.c
/usr/src/usr.bin/sort/file.c:601:12: error: format string is not a
string literal (potentially insecure) [-Werror,-Wformat-security]
                                err(2, getstr(7));
                                       ^~~~~~~~~
/usr/src/usr.bin/sort/sort.h:52:20: note: expanded from macro 'getstr'
#define getstr(n)        catgets(catalog, 1, n, nlsstr[n])
                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/src/usr.bin/sort/file.c:942:11: error: format string is not a
string literal (potentially insecure) [-Werror,-Wformat-security]
                        err(2, getstr(8));
                               ^~~~~~~~~
/usr/src/usr.bin/sort/sort.h:52:20: note: expanded from macro 'getstr'
#define getstr(n)        catgets(catalog, 1, n, nlsstr[n])
                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/src/usr.bin/sort/file.c:1279:10: error: format string is not a
string literal (potentially insecure) [-Werror,-Wformat-security]
                err(2, getstr(9));
                       ^~~~~~~~~
/usr/src/usr.bin/sort/sort.h:52:20: note: expanded from macro 'getstr'
#define getstr(n)        catgets(catalog, 1, n, nlsstr[n])
                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/src/usr.bin/sort/file.c:1295:12: error: format string is not a
string literal (potentially insecure) [-Werror,-Wformat-security]
                        errx(2, getstr(10));
                                ^~~~~~~~~~
/usr/src/usr.bin/sort/sort.h:52:20: note: expanded from macro 'getstr'
#define getstr(n)        catgets(catalog, 1, n, nlsstr[n])
                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4 errors generated.
*** [file.o] Error code 1

Stop in /usr/src/usr.bin/sort.