Locale not support by C library

[catproof]

When (successfully) running the EuRoC example, I get the following:

Camera Parameters:

• Camera: Pinhole
• fx: 458.65399169921875
• fy: 457.29598999023438
• cx: 367.21499633789062
• cy: 248.375
• k1: -0.28340810537338257
• k2: 0.073959067463874817
• p1: 0.00019359000725671649
• p2: 1.7618711353861727e-05
• fps: 20
• color order: RGB (ignored if grayscale)

ORB Extractor Parameters:

• Number of Features: 1000
• Scale Levels: 8
• Scale Factor: 1.2000000476837158
• Initial Fast Threshold: 20
• Minimum Fast Threshold: 7

(process:2380): Gtk-WARNING **: 18:36:44.519: Locale not supported by C library.
Using the fallback 'C' locale.

I don't think this warning is much of an issue, but I thought it would be nice to bring to your attention. Do you also get the same warning? I am running the cuda version or your docker.

[jahaniam]

Most likely this will fix it:
https://askubuntu.com/questions/359753/gtk-warning-locale-not-supported-by-c-library-when-starting-apps-from-th