Fixing a missing comma in the QCG workflow

write (jobcall, '(a,1x,''dock'',1x,a,1x,a,1x,a,1x,f4.2,1x,''--nfrag1'',1x,i0,1x,a,1x, & <- add a trailing comma in src/qcg/solvtool_misc.f90 @ line 235 (commit 4f0f4ab)

This allows the GFN1 and GFN2 methods to work as expected.

[pprcht]

done. #429