Remove the universal accessor from BuildOptions

BuildOptions is now immutable (finally).
Simplify cxxstdlib_check implementation

The cxxstdlib_check method currently only supports one value, so we can
just define the accompanying instance method when necessary. If we ever
add more options we can back it with a data structure.
fetch: retry the download on a failure.
nordugric-arc 4.2.0

Release 4.2.0. Patch is no longer needed.

Closes #31633.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
Camlistore 0.8
camlistore: add 0.8 bottle.

Closes #31637.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
fzf 0.8.7

Closes #31644.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
brew-pull: don't barf on syntax errors.
Use the keg_only_reason instance method in keg_only?
phantomjs: add HEAD

Closes #31351.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
whitedb 0.7.2

Closes #28482.
Define the test_defined? method dynamically
Harbour 3.0.0 (new formula).

Harbour is the free software implementation of a multi-platform,
multi-threading, object-oriented, scriptable programming language,
backward compatible with Clipper/xBase. Harbour consists of a compiler
and runtime libraries with multiple UI and database backends, its own
make system and a large collection of libraries and interfaces to many
popular APIs.

Harbour is a cross-platform compiler and is known to compile and run on
Windows (32 & 64), GNU/Linux, OS X, Windows CE, OS/2 and MS-DOS.

http://harbour-project.org/
harbour: add 3.0.0 bottle.

Closes #28609.

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>
Use the build accessor rather than metaprogramming
udns 0.4

Closes #31652.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
pandoc 1.13

Also remove outdated bash completion.
pandoc: update 1.13 bottle.

Closes #31657.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
the_silver_searcher 0.24.1
the_silver_searcher: update 0.24.1 bottle.

Closes #31658.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>