fixed call to a protected member

[yowaiOtoko]

Q	A
Bug fix?	yes
New feature?	no
BC breaks?	no
Deprecations?	no
Tests pass?	yes
Fixed tickets
License	MIT

[codecov]

Codecov Report

Merging #357 into master will not change coverage.
The diff coverage is 0%.

@@           Coverage Diff            @@
##             master    #357   +/-   ##
========================================
  Coverage      55.7%   55.7%           
  Complexity      263     263           
========================================
  Files            14      14           
  Lines          1070    1070           
========================================
  Hits            596     596           
  Misses          474     474

Impacted Files	Coverage Δ	Complexity Δ
src/Loader/ElFinderLoader.php	23.68% <0%> (ø)	16 <0> (ø)	⬇️

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