One warning during compilation

[Vascom]

Please correct code to remove this warning:

#!

fuseZipData.cpp: In destructor 'FuseZipData::~FuseZipData()':
fuseZipData.cpp:36:18: warning: ignoring return value of 'int chdir(const char*)', declared with attribute warn_unused_result [-Wunused-result]
             chdir("/tmp");
             ~~~~~^~~~~~~~

[Alexander Galanin]

check return value of chdir(), fixes issue #51

→ <<cset 61bca8763692>>

[Alexander Galanin]

Released in version 0.4.5.