[groff] 01/02: doc/groff.texi: Improve .cflags documentation.

[G. Branden Robinson]

gbranden pushed a commit to branch master
in repository groff.

commit 15241e69905de31717b77f762801d6f7ac5e4334
Author: Dave Kemper <address@hidden>
AuthorDate: Sat Jan 18 16:56:09 2020 +1100

    doc/groff.texi: Improve .cflags documentation.
    
    Document initial empty set membership of characters with cflags values
    of 128, 256, or 512 in parallel with preceding paragraphs regarding
    smaller powers of two.
    
    Fixes <https://savannah.gnu.org/bugs/?57549>.
    
    Signed-off-by: G. Branden Robinson <address@hidden>
---
 ChangeLog      | 9 +++++++++
 doc/groff.texi | 7 +++++--
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 7aae820..1efc014 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,14 @@
 2020-01-18  G. Branden Robinson <address@hidden>
 
+       * doc/groff.texi: Document initial empty set membership of
+       characters with cflags values of 128, 256, or 512 in parallel
+       with preceding paragraphs regarding smaller powers of two.
+
+       Report and patch by Dave Kemper <address@hidden>.
+       Fixes <https://savannah.gnu.org/bugs/?57549>.
+
+2020-01-18  G. Branden Robinson <address@hidden>
+
        * src/roff/groff/tests/*.sh: Rename some tests so their
        filenames are more self-descriptive.
        * src/roff/groff/groff.am: Update list of tests.
diff --git a/doc/groff.texi b/doc/groff.texi
index 54d392e..a39bec4 100644
--- a/doc/groff.texi
+++ b/doc/groff.texi
@@ -9322,16 +9322,19 @@ hyphen at the places that really need a break point.
 @item 128
 Prohibit a line break before the character, but allow a line break after
 the character.  This works only in combination with flags 256 and 512
-(see below) and has no effect otherwise.
+(see below) and has no effect otherwise.  Initially no characters have
+this property.
 
 @item 256
 Prohibit a line break after the character, but allow a line break before
 the character.  This works only in combination with flags 128 and 512
-(see below) and has no effect otherwise.
+(see below) and has no effect otherwise.  Initially no characters have
+this property.
 
 @item 512
 Allow line break before or after the character.  This works only in
 combination with flags 128 and 256 and has no effect otherwise.
+Initially no characters have this property.
 
 Contrary to flag values 2 and@tie{}4, the flags 128, 256, and 512 work
 pairwise.  If, for example, the left character has value 512, and the