-*- org -*-
* simple problematic
** 2:  nosuch
rcsdiff: RCS/nosuch,v: No such file or directory
===================================================================
RCS file: t160.d/x,v
rcsdiff: x: No such file or directory
** 2:  t160.d/nosuch
rcsdiff: t160.d/RCS/nosuch,v: No such file or directory
===================================================================
RCS file: t160.d/x,v
rcsdiff: x: No such file or directory
** 2:  -rnosuch -rnosuch
===================================================================
RCS file: t160.d/x,v
rcsdiff: t160.d/x,v: Symbolic name `nosuch' is undefined.
** 2:  t160.d/x
===================================================================
RCS file: t160.d/x,v
rcsdiff: t160.d/x: No such file or directory
* bad revision
** 2:  -r -r2
===================================================================
RCS file: t160.d/x,v
rcsdiff: t160.d/x,v: revision 2 absent
** 2:  -r2 -r
===================================================================
RCS file: t160.d/x,v
rcsdiff: t160.d/x,v: revision 2 absent
** 2:  -r1.6.2 -r
===================================================================
RCS file: t160.d/x,v
rcsdiff: t160.d/x,v: branch number 1.6.2 too high
** 2:  -r -r1.6.2
===================================================================
RCS file: t160.d/x,v
rcsdiff: t160.d/x,v: branch number 1.6.2 too high
* b HEAD / b HEAD
** 0:  -r -r
===================================================================
RCS file: t160.d/x,v
** 0:  -r1.6.1.2 -r1.6.1.2
===================================================================
RCS file: t160.d/x,v
** 0:  -r -r1.6.1.2
===================================================================
RCS file: t160.d/x,v
** 0:  -r1.6.1.2 -r
===================================================================
RCS file: t160.d/x,v
* different revisions but same text (w/ various -kSUBST)
** 0: -kkv -r1.1.1.1 -r1.1.1.2
===================================================================
RCS file: t160.d/x,v
retrieving revision 1.1.1.1
retrieving revision 1.1.1.2
diff -r1.1.1.1 -r1.1.1.2
** 0: -kkvl -r1.1.1.1 -r1.1.1.2
===================================================================
RCS file: t160.d/x,v
retrieving revision 1.1.1.1
retrieving revision 1.1.1.2
diff -r1.1.1.1 -r1.1.1.2
** 0: -kk -r1.1.1.1 -r1.1.1.2
===================================================================
RCS file: t160.d/x,v
retrieving revision 1.1.1.1
retrieving revision 1.1.1.2
diff -r1.1.1.1 -r1.1.1.2
** 0: -ko -r1.1.1.1 -r1.1.1.2
===================================================================
RCS file: t160.d/x,v
retrieving revision 1.1.1.1
retrieving revision 1.1.1.2
diff -r1.1.1.1 -r1.1.1.2
** 0: -kb -r1.1.1.1 -r1.1.1.2
===================================================================
RCS file: t160.d/x,v
retrieving revision 1.1.1.1
retrieving revision 1.1.1.2
diff -r1.1.1.1 -r1.1.1.2
** 0: -kv -r1.1.1.1 -r1.1.1.2
===================================================================
RCS file: t160.d/x,v
retrieving revision 1.1.1.1
retrieving revision 1.1.1.2
diff -r1.1.1.1 -r1.1.1.2
* b known differerences
** 1: -kk -r -r1.6.1.1
===================================================================
RCS file: t160.d/x,v
retrieving revision 1.6.1.2
retrieving revision 1.6.1.1
diff -r1.6.1.2 -r1.6.1.1
** 1: -kk -r -r1.1.1.7
===================================================================
RCS file: t160.d/x,v
retrieving revision 1.6.1.2
retrieving revision 1.1.1.7
diff -r1.6.1.2 -r1.1.1.7
** 1: -kk -r -r1.9
===================================================================
RCS file: t160.d/x,v
retrieving revision 1.6.1.2
retrieving revision 1.9
diff -r1.6.1.2 -r1.9
* long options passthrough
  -u  -U NUM  --unified[=NUM]  Output NUM (default 3) lines of unified context.
===================================================================
RCS file: t160.d/two,v
retrieving revision 4.20
retrieving revision 4.21
diff --unified -r4.20 -r4.21
* slightly binary
t160.d/x,v  -->  t160.d/x
revision 1.2 (unlocked)
done
** 2: -kk -r1.1
===================================================================
RCS file: t160.d/x,v
rcsdiff: x: No such file or directory
* corrupted ed script
*** error expanding keywords while applying delta
t160.d/x,v  -->  t160.d/x
revision 4.21
done
co: t160.d/x,v:44: error expanding keywords while applying delta 4.20
*** edit script refers to line past end of file
t160.d/x,v  -->  t160.d/x
revision 4.21
done
co: t160.d/x,v:44: edit script refers to line past end of file