Blender Git Loki

Fix T62678: Wrong text clipping

There are two issues at play here.
First, BLF_width computed a width that was not wide
enough to actually hold the text.
Second, blf_glyph_calc_rect_test computed an incorrect
rect->xmax when the glyph was moved to the left a bit.
We ignore the overlap on the left, but the right side
should still be adjusted accordingly.