cpu.Counts(true) double-counts processors

[blalor]

Describe the bug

When cpu.Counts(true) parses /proc/cpuinfo, it counts every line that starts with processor (case-insensitive). In the case of /proc/cpuinfo showing the following for each cpu, the total number is double what it should be:

processor	: 0
Processor	: ARMv7 Processor rev 4 (v7l)
model name	: ARMv7 Processor rev 4 (v7l)
BogoMIPS	: 40.94
Features	: half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm aes pmull sha1 sha2 crc32
CPU implementer	: 0x41
CPU architecture: 7
CPU variant	: 0x0
CPU part	: 0xd03
CPU revision	: 4

Expected behavior

Number of CPUs should match the actual number of CPUs.

Environment (please complete the following information):

Linux: Linux localhost 4.4.146+ #1 SMP PREEMPT Tue Feb 16 03:31:51 UTC 2021 armv7l

Additional context

This is an embedded device running Android. Full contents of /proc/cpuinfo is attached:
cpuinfo.txt.gz