manual: Touch up documentation for strftime and ALTMON_* constants.

"%OB" is considered a conversion specifier ("B" is the format
specifier), and the list of format specifiers for months in the
description of the optional "O" modifier was incomplete.  A
cross-reference from the ALTMON_* constants to the strftime section
is also provided.  Lastly, some grammatical fixes (commas) are made
and paragraphs refactored (rewrapped).

	* manual/locale.texi (ALTMON_1, ALTMON_2, ALTMON_3, ALTMON_4,
	ALTMON_5, ALTMON_6, ALTMON_7, ALTMON_8, ALTMON_9, ALTMON_10,
	ALTMON_11, ALTMON_12): Improve documentation.
	* manual/time.texi (strftime): Likewise.

3 files changed, 27 insertions, 13 deletions

diff --git a/ChangeLog b/ChangeLog
index 7b518b269a..c09316d57e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2018-01-22  Rical Jasan  <ricaljasan@pacific.net>
+
+	* manual/locale.texi (ALTMON_1, ALTMON_2, ALTMON_3, ALTMON_4)
+	(ALTMON_5, ALTMON_6, ALTMON_7, ALTMON_8, ALTMON_9, ALTMON_10)
+	(ALTMON_11, ALTMON_12): Improve documentation.
+	* manual/time.texi (strftime): Likewise.
+
 2018-01-22  Rafal Luzynski  <digitalfreak@lingonborough.com>
 
 	[BZ #10871]
diff --git a/manual/locale.texi b/manual/locale.texi
index 059db75c1c..dabb959f9e 100644
--- a/manual/locale.texi
+++ b/manual/locale.texi
@@ -923,7 +923,7 @@ corresponds to Sunday.
 @itemx DAY_5
 @itemx DAY_6
 @itemx DAY_7
-Similar to @code{ABDAY_1} etc.,@: but here the return value is the
+Similar to @code{ABDAY_1}, etc.,@: but here the return value is the
 unabbreviated weekday name.
 @item ABMON_1
 @itemx ABMON_2
@@ -937,9 +937,9 @@ unabbreviated weekday name.
 @itemx ABMON_10
 @itemx ABMON_11
 @itemx ABMON_12
-The return value is the abbreviated name of the month, in the grammatical
-form used when the month forms part of a complete date.  @code{ABMON_1}
-corresponds to January.
+The return value is the abbreviated name of the month, in the
+grammatical form used when the month forms part of a complete date.
+@code{ABMON_1} corresponds to January.
 @item MON_1
 @itemx MON_2
 @itemx MON_3
@@ -952,8 +952,9 @@ corresponds to January.
 @itemx MON_10
 @itemx MON_11
 @itemx MON_12
-Similar to @code{ABMON_1} etc.,@: but here the month names are not abbreviated.
-Here the first value @code{MON_1} also corresponds to January.
+Similar to @code{ABMON_1}, etc.,@: but here the month names are not
+abbreviated.  Here the first value @code{MON_1} also corresponds to
+January.
 @item ALTMON_1
 @itemx ALTMON_2
 @itemx ALTMON_3
@@ -966,13 +967,19 @@ Here the first value @code{MON_1} also corresponds to January.
 @itemx ALTMON_10
 @itemx ALTMON_11
 @itemx ALTMON_12
-Similar to @code{MON_1} etc.,@: but here the month names are in the grammatical
-form used when the month is named by itself.  The @code{strftime} functions
-use these month names for the format specifier @code{OB}.
+Similar to @code{MON_1}, etc.,@: but here the month names are in the
+grammatical form used when the month is named by itself.  The
+@code{strftime} functions use these month names for the conversion
+specifier @code{%OB} (@pxref{Formatting Calendar Time}).
 
 Note that not all languages need two different forms of the month names,
 so the strings returned for @code{MON_@dots{}} and @code{ALTMON_@dots{}}
 may or may not be the same, depending on the locale.
+
+@strong{NB:} @code{ABALTMON_@dots{}} constants corresponding to the
+@code{%Ob} conversion specifier are not currently provided, but are
+expected to be in a future release.  In the meantime, it is possible
+to use @code{_NL_ABALTMON_@dots{}}.
 @item AM_STR
 @itemx PM_STR
 The return values are strings which can be used in the representation of time
diff --git a/manual/time.texi b/manual/time.texi
index 2a5afd9e56..4d154452eb 100644
--- a/manual/time.texi
+++ b/manual/time.texi
@@ -1349,10 +1349,10 @@ Emperors' reigns.
 With all format specifiers that produce numbers: use the locale's
 alternate numeric symbols.
 
-With @code{%B} and @code{%b}: use the grammatical form for month names
-that is appropriate when the month is named by itself, rather than
-the form that is appropriate when the month is used as part of a
-complete date.  This is a GNU extension.
+With @code{%B}, @code{%b}, and @code{%h}: use the grammatical form for
+month names that is appropriate when the month is named by itself,
+rather than the form that is appropriate when the month is used as
+part of a complete date.  This is a GNU extension.
 @end table
 
 If the format supports the modifier but no alternate representation