master
Adjust to minor spacing changes in pr headers.
.
pr -F no longer suppresses the footer or the first two blank header lines
pr: ensure the page header line is of the required format
tests: avoid $SHELL -c "ulimit ..." pattern
pr: fix a bug whereby --indent=N (-o) did not indent header lines
pr: guard input position update against overflow
maint: run 'make update-copyright'
new tests from Roland
renamed from T- versions to avoid name-clashes on case-indep filesystems