[PATCH] Minor "catch" documentation improvements

[Tom Tromey <tromey@adacore.com>]

This patch makes a few minor improvements to the catchpoint
documentation:

* "catch exception" and "catch handlers" now mention the argument in
  the @item.

* "catch exception unhandled" is moved to be closer to "catch
  exception", rather than after "catch handlers".

* "catch load" and "catch unload" now wrap the argument in @var.

gdb/doc/ChangeLog
2019-05-10  Tom Tromey  <tromey@adacore.com>

	* gdb.texinfo (Set Catchpoints): Add text for parameter to "catch
	exception" and "catch handlers".  Move "catch exception unhandled"
	text.  Use @var for "catch load" and "catch unload"
---
 gdb/doc/ChangeLog   |  6 ++++++
 gdb/doc/gdb.texinfo | 16 ++++++++--------
 2 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index b7f3b271d1f..1fb4e3df6a3 100644
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -4509,7 +4509,7 @@ You cannot raise an exception interactively.
 You cannot install an exception handler interactively.
 @end itemize
 
-@item exception
+@item exception @r{[}@var{name}@r{]}
 @kindex catch exception
 @cindex Ada exception catching
 @cindex catch Ada exceptions
@@ -4527,7 +4527,11 @@ called @code{Constraint_Error} is defined in package @code{Pck}, then
 the command to use to catch such exceptions is @kbd{catch exception
 Pck.Constraint_Error}.
 
-@item handlers
+@item exception unhandled
+@kindex catch exception unhandled
+An exception that was raised but is not handled by the program.
+
+@item handlers @r{[}@var{name}@r{]}
 @kindex catch handlers
 @cindex Ada exception handlers catching
 @cindex catch Ada exceptions when handled
@@ -4547,10 +4551,6 @@ user-defined one.  For instance, assuming an exception called
 command to use to catch such exceptions handling is
 @kbd{catch handlers Pck.Constraint_Error}.
 
-@item exception unhandled
-@kindex catch exception unhandled
-An exception that was raised but is not handled by the program.
-
 @item assert
 @kindex catch assert
 A failed Ada assertion.
@@ -4727,8 +4727,8 @@ A call to @code{fork}.
 @kindex catch vfork
 A call to @code{vfork}.
 
-@item load @r{[}regexp@r{]}
-@itemx unload @r{[}regexp@r{]}
+@item load @r{[}@var{regexp}@r{]}
+@itemx unload @r{[}@var{regexp}@r{]}
 @kindex catch load
 @kindex catch unload
 The loading or unloading of a shared library.  If @var{regexp} is
-- 
2.20.1