Build of tests fails for version 1.3

[Sebastian Ehlert]

Seems like a variable is not declared properly in one of the tests:

[89/121] Building Fortran object test/CMakeFiles/test_allgather.dir/test_allgather.f90.o
FAILED: test/CMakeFiles/test_allgather.dir/test_allgather.f90.o 
$BUILD_PREFIX/bin/x86_64-conda-linux-gnu-gfortran -I$SRC_DIR/test -I$SRC_DIR/_build/lib/include -march=nocona -mtune=haswell -ftree-vectorize -fPIC -fstack-protector-strong -fno-plt -O2 -ffunction-sections -pipe -isystem $PREFIX/include -fdebug-prefix-map=$SRC_DIR=/usr/local/src/conda/mpifx-1.3 -fdebug-prefix-map=$PREFIX=/usr/local/src/conda-prefix -fallow-argument-mismatch -O2 -g -DNDEBUG -Jtest -fpreprocessed -c test/CMakeFiles/test_allgather.dir/test_allgather.f90-pp.f90 -o test/CMakeFiles/test_allgather.dir/test_allgather.f90.o
$SRC_DIR/test/test_allgather.f90:27:11:

   27 |     tPassed = .false.
      |           1
Error: Symbol 'tpassed' at (1) has no IMPLICIT type; did you mean 'ispassed'?

[Ben Hourahine]

Closed by #45