vendor/bc: upgrade to version 7.0.2

This update fixes exiting from an interactive bc session with ^D on
FreeBSD and Linux when using editline.

This bug was caused by the macOS fix for editline in v

vendor/bc: upgrade to version 7.0.2

This update fixes exiting from an interactive bc session with ^D on
FreeBSD and Linux when using editline.

This bug was caused by the macOS fix for editline in version 7.0.0,
which has been reverted in this version.

(cherry picked from commit c2c85f88902d18d2e9702381f1628112e15a5c3c)

MFC after: 3 days
Reported by: mack@macktronics.com

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vendor/bc: upgrade to version 7.0.0

This is a production release to fix three bugs, none of which
affects well formed scripts on FreeBSD:

The first bug is that bc/dc will exit on macOS when the ter

vendor/bc: upgrade to version 7.0.0

This is a production release to fix three bugs, none of which
affects well formed scripts on FreeBSD:

The first bug is that bc/dc will exit on macOS when the terminal
is resized.

The second bug is that an array, which should only be a function
parameter, was accepted as part of larger expressions.

The third bug is that the value stack for dc was cleared on any error.
However, this is not how other dc behave. To bring dc more in line
with other implementations, this behavior was changed. This change is
why this version is a new major version.

(cherry picked from commit 54d20d67e2af28d948ce2df13feb039fa10900fc)

MFC after: 3 days

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