K 10
svn:author
V 4
manu
K 8
svn:date
V 27
2019-07-22T10:17:59.977461Z
K 7
svn:log
V 380
arm: Use -O2 instead of -O as optimization flag

When using Clang -O is equivalent to -O2, change it -O2 to make it
consistent with other platforms.

Reference: https://clang.llvm.org/docs/ClangCommandLineReference.html#optimization-level

Submitted by:	Daniel Engberg (daniel.engberg.lists@pyret.net)
Reviewed by:	emaste
Differential Revision:	https://reviews.freebsd.org/D21021

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