Update manylinux2010 policy with CentOS6-i686

[veblush]

It seems that manylinux2010 lacks symbols for 32-bit CentOS 6 . Running calculate_symbol_versions.py with docker image i386/centos:6 shows:

# python3 calculate_symbol_versions.py manylinux2010 ../auditwheel/policy/policy.json
{"GLIBC": ["2.0", "2.1", "2.1.1", "2.1.2", "2.1.3", "2.2", "2.2.1", "2.2.2", "2.2.3", 
 "2.2.4", "2.2.6", "2.3", "2.3.2", "2.3.3", "2.3.4", "2.4", "2.5", "2.6", "2.7", "2.8",
 "2.9", "2.10", "2.11", "2.12"], 
 "CXXABI": ["1.3", "1.3.1", "1.3.2", "1.3.3"],
 "GLIBCXX": ["3.4", "3.4.1", "3.4.2", "3.4.3", "3.4.4", "3.4.5", "3.4.6", "3.4.7",
 "3.4.8", "3.4.9", "3.4.10", "3.4.11", "3.4.12", "3.4.13"],
 "GCC": ["3.0", "3.3", "3.3.1", "3.4", "3.4.2", "4.0.0", "4.2.0", "4.3.0", "4.4.0", 
 "4.5.0"]}

To cover CentOS-6 i686 properly, I merged this result to manylinux2010 in policy.json. Actually it shows differences on GLIBC and GCC but I updated GLIBC only because GCC 4.5.0 seems a bit strange.

From glibc source, i386 and x86_64 has a different version for the same function. open function, for example, GLIBC_2.0 is assigned on i386 but GLIBC_2.2.5 is on x86_64.

As a double-check, I also ran readelf -Ws libgcc_s.so.1 | grep @@ | sed -En 's/(.*)@@(.*)/\2/p' | sort -u command on both CentOS6 32bits and 64bits to display all version symbols.

# 32bit/libc.so.6
GCC_3.0
GLIBC_2.0
GLIBC_2.1
GLIBC_2.1.1
GLIBC_2.1.2
GLIBC_2.1.3
GLIBC_2.10
GLIBC_2.11
GLIBC_2.12
GLIBC_2.2
GLIBC_2.2.1
GLIBC_2.2.2
GLIBC_2.2.3
GLIBC_2.2.4
GLIBC_2.2.6
GLIBC_2.3
GLIBC_2.3.2
GLIBC_2.3.3
GLIBC_2.3.4
GLIBC_2.4
GLIBC_2.5
GLIBC_2.6
GLIBC_2.7
GLIBC_2.8
GLIBC_2.9

# 64bit/libc.so.6
GLIBC_2.10
GLIBC_2.11
GLIBC_2.12
GLIBC_2.2.5
GLIBC_2.2.6
GLIBC_2.3
GLIBC_2.3.2
GLIBC_2.3.3
GLIBC_2.3.4
GLIBC_2.4
GLIBC_2.5
GLIBC_2.6
GLIBC_2.7
GLIBC_2.8
GLIBC_2.9

# 32bit/libgcc_s.so.1
GCC_3.0
GCC_3.3
GCC_3.3.1
GCC_3.4
GCC_3.4.2
GCC_4.0.0
GCC_4.2.0
GCC_4.3.0
GCC_4.4.0
GCC_4.5.0
GLIBC_2.0

# 64bit/libgcc_s.so.1
GCC_3.0
GCC_3.3
GCC_3.3.1
GCC_3.4
GCC_3.4.2
GCC_3.4.4
GCC_4.0.0
GCC_4.2.0
GCC_4.3.0

[codecov]

Codecov Report

Merging #194 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #194   +/-   ##
=======================================
  Coverage   87.43%   87.43%           
=======================================
  Files          19       19           
  Lines         963      963           
  Branches      210      210           
=======================================
  Hits          842      842           
  Misses         84       84           
  Partials       37       37

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 14fed33...e874349. Read the comment docs.

[veblush]

Oh there is an existing PR #141 trying to do the same thing. I'll close this once the PR is merged.