[groff] 20/46: doc/groff.texi: Fix error in .rnn description.

[G. Branden Robinson]

gbranden pushed a commit to branch dev-gropdf-boxes
in repository groff.

commit 136ca62525660b44cc46faaf1ed7906bc861c737
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
AuthorDate: Sun Apr 11 09:45:35 2021 +1000

    doc/groff.texi: Fix error in .rnn description.
    
    * doc/groff.texi (Setting Registers) <rnn>: Fix error; the request is
      not ignored if the second argument (the new name) does not exist.
      Problem dates back to 52a6d12a (11 May 2000).
    * man/groff_diff.7.man (Language/New requests) <rnn>: Sync with above.
    
    Input:
        .rr b
        .nr a 1
        .rnn a b
        .tm \nb
    
    Output (stderr):
        1
---
 ChangeLog            | 6 ++++++
 doc/groff.texi       | 4 ++--
 man/groff_diff.7.man | 7 +++++++
 3 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index a21e856..fc1d744 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2021-04-11  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+       * doc/groff.texi (Setting Registers) <rnn>: Fix error; the
+       request is not ignored if the second argument (the new name)
+       does not exist.  Problem dates back to 52a6d12a (11 May 2000).
+
 2021-04-09  G. Branden Robinson <g.branden.robinson@gmail.com>
 
        Implement new .soquiet and .msoquiet requests.
diff --git a/doc/groff.texi b/doc/groff.texi
index 4279eca..9118886 100644
--- a/doc/groff.texi
+++ b/doc/groff.texi
@@ -6470,8 +6470,8 @@ any.
 @Defreq {rnn, ident1 ident2}
 @cindex renaming a register (@code{rnn})
 @cindex register, renaming (@code{rnn})
-Rename register @var{ident1} to @var{ident2}.  If either @var{ident1} or
-@var{ident2} doesn't exist, the request is ignored.
+Rename register @var{ident1} to @var{ident2}.  If @var{ident1} doesn't
+exist, the request is ignored.
 @endDefreq
 
 @Defreq {aln, new old}
diff --git a/man/groff_diff.7.man b/man/groff_diff.7.man
index a5e263c..44d838e 100644
--- a/man/groff_diff.7.man
+++ b/man/groff_diff.7.man
@@ -2769,6 +2769,7 @@ The
 request implicitly does
 .BR .rj\~0 .
 .
+.
 .TP
 .BI .rnn \~xx\~yy
 Rename number register
@@ -2776,6 +2777,12 @@ Rename number register
 to
 .IR yy .
 .
+If
+.I xx
+doesn't exist,
+the request is ignored.
+.
+.
 .TP
 .BI .schar\~ c\~string
 Define global fallback character (or glyph)\~\c