I'd like to report the minor issue that the 'help builtin' command has
an extra '.' at the end of the 'exit status' section.
bash --version
GNU bash, version 4.2.25(1)-release (x86_64-pc-linux-gnu)
builtin: builtin [shell-builtin [arg ...]]
Execute shell builtins.
Execute SHELL-BUILTIN with arguments ARGs without performing command
lookup. This is useful when you wish to reimplement a shell builtin
as a shell function, but need to execute the builtin within the function.
Exit Status:
Returns the exit status of SHELL-BUILTIN, or false if SHELL-BUILTIN is
not a shell builtin..
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