Don't redirect output to log file when calling import script

[fab-bar]

Fixes #102 The output of the script is added to the logfile later so redirecting it is not necessary.

[codecov[bot]]

Codecov Report

Merging #103 into master will increase coverage by 0.04%. The diff coverage is 0%.

@@            Coverage Diff             @@
##             master   #103      +/-   ##
==========================================
+ Coverage     29.95%    30%   +0.04%     
- Complexity     1333   1335       +2     
==========================================
  Files            63     63              
  Lines          7401   7409       +8     
==========================================
+ Hits           2217   2223       +6     
- Misses         5184   5186       +2

Flag	Coverage Δ	Complexity Δ
#backend	52.4% <0%> (+0.04%)	1335 <0> (+2)	:arrow_up:
#frontend	0.56% <ø> (ø)	0 <ø> (ø)	:arrow_down:

Impacted Files	Coverage Δ	Complexity Δ
src/lib/commandHandler.php	0% <0%> (ø)	17 <0> (ø)	:arrow_down:
src/lib/exporter.php	67.74% <0%> (-0.06%)	59% <0%> (ø)
src/lib/automaticAnnotation.php	75.71% <0%> (+0.71%)	32% <0%> (+2%)	:arrow_up:

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[fab-bar]

I have added another change so that the output from the import script (e.g. warnings) is shown to the user when the import succeeds as well.