How to get meaningful totals in a Devel::Cover coverage report for a subset of code?

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Total    12.5    2.6    2.2    32.7    2.1    100.0    10.5

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cover -select_re Foo\.pm

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file    stmt    bran    cond    sub    pod    time    total
lib/C/Foo.pm    19.1    0.0    0.0    50.0    0.0    0.0    13.3
lib/M/Foo.pm    6.4    0.0    0.0    11.5    0.0    0.0    5.2
lib/V/Foo.pm    31.6    n/a    n/a    50.0    0.0    0.0    32.0
Total    12.5    2.6    2.2    32.7    2.1    100.0    10.5

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