Error in formatPgfTickLabels with loglog plots

[dgaylo]

Description

When I run matlab2tikz(... 'strict', true, ...) with a loglog Matlab plot I get the following error:

Unrecognized function or variable 'str'.

Error in matlab2tikz>formatPgfTickLabels (line 5651)
                tickLabels{k} = sprintf('$10^{%s}$', str);

It seems that a place holder variable str was left here:

matlab2tikz/src/matlab2tikz.m

Line 5651 in 806c97d

tickLabels{k} = sprintf('$10^{%s}$', str);

Steps to Reproduce

Matlab code:

clear all
loglog([1e-2,1e2],[1e-5,1e5]);
matlab2tikz('test.tex', 'strict', true);

Full Error Message:

Unrecognized function or variable 'str'.

Error in matlab2tikz>formatPgfTickLabels (line 5651)
                tickLabels{k} = sprintf('$10^{%s}$', str);

Error in matlab2tikz>matlabTicks2pgfplotsTicks (line 5588)
    pTickLabels = formatPgfTickLabels(m2t, isNeeded, tickLabels, ...

Error in matlab2tikz>getAxisTicks (line 1611)
            matlabTicks2pgfplotsTicks(m2t, ticks, tickLabels, isAxisLog, tickLabelMode);

Error in matlab2tikz>getAxisOptions (line 1561)
    [options] = getAxisTicks(m2t, handle, axis, options);

Error in matlab2tikz>drawAxes (line 900)
    [m2t, xopts] = getAxisOptions(m2t, handle, 'x');

Error in matlab2tikz>saveToFile (line 485)
        m2t = drawAxes(m2t, relevantAxesHandle);

Error in matlab2tikz (line 337)
    m2t = saveToFile(m2t, fid, fileWasOpen);

Error in example (line 3)
matlab2tikz('test.tex', 'strict', true);

[ThexXTURBOXx]

This is due to a bug in #927. The str has not been properly changed to tickLabels{k}.
However, I cannot see why everything inside the small if statement was even necessary. In my tests, the tickLabels variable always holds the right values and not only the exponents.
Maybe, it is not necessary anymore in newer versions of MATLAB?