* src/editfns.c (Fformat): Use the correct regexp for describing the
flags in a %-sequence (place the hyphen last).
%<field><flags><width><precision>character
where field is [0-9]+ followed by a literal dollar "$", flags is
-[+ #-0]+, width is [0-9]+, and precision is a literal period "."
+[+ #0-]+, width is [0-9]+, and precision is a literal period "."
followed by [0-9]+.
If a %-sequence is numbered with a field with positive value N, the