Quick fix: wrong path in update version

[lasofivec]

the path to the file version had twice the directory "tofu" appended:

Once here (in the function)

tofu/setup.py

Line 154 in c25c76c

version_py = os.path.join(path, 'tofu', 'version.py')

A second time here (at call time):

tofu/setup.py

Line 189 in 0bfdf2b

version_tofu = updateversion(os.path.join(path, "tofu"))

so it was working for the version.py file in $TOFU_DIR/tofu/tofu/

[codecov-io]

Codecov Report

Merging #315 into devel will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##            devel     #315   +/-   ##
=======================================
  Coverage   41.02%   41.02%           
=======================================
  Files          79       79           
  Lines       23478    23478           
=======================================
  Hits         9633     9633           
  Misses      13845    13845

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[Didou09]

Good for me