Give the -o option before any filename operands when invoking the sort

utility. 1003.1-2001 does not allow sort to accept the -o option after
the operands (Base Definitions, 12.2 Utility Syntax Guidelines,
Guideline 9).

usr.bin/lorder/lorder.sh

@@ -79,7 +79,7 @@ ${NM} -go $* | sed "
 
 # sort symbols and references on the first field (the symbol)
 # join on that field, and print out the file names.
-sort -k 2 $R -o $R
-sort -k 2 $S -o $S
+sort -k 2 -o $R $R
+sort -k 2 -o $S $S
 join -j 2 -o 1.1 2.1 $R $S
 rm -f $R $S