[OpenJDK 2D-Dev] RFR [XS] : 8232381: add result NULL-checking to freetypeScaler.c

[Baesken, Matthias]

Hello, please review the following small webrev .

Java_sun_font_FreetypeFontScaler_getGlyphImageNative   might return NULL which 
should be checked , the change add one missing check .



Bug/webrev :

https://bugs.openjdk.java.net/browse/JDK-8232381

http://cr.openjdk.java.net/~mbaesken/webrevs/8232381.0/


Thanks and regards, Matthias