cmdutil: replace sys.maxint with None as default value in loglimit
Semantically, it is better to use None over any other value when there is
"no value". Using maxint in this context is quite hackish, and is not forward
compatible.
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* two 3:2ae46b1d99a7
one 1:925d80f479bb
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changeset: 3:9163974d1cb5
tag: tip
tag: two
tag: one
parent: 1:925d80f479bb
parent: 2:db815d6d32e6
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 3
changeset: 2:db815d6d32e6
parent: 0:f7b1eb17ad24
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 2
changeset: 1:925d80f479bb
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 1
changeset: 0:f7b1eb17ad24
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 0