memleak in filter colortap

[jaromil]

{ "name":"colortap", "type":"filter", "color_model":"rgba8888", "num_params":"1" }

==4930==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 6 byte(s) in 1 object(s) allocated from:

0 0x49a88d in malloc (/home/jrml/frei0r/test/frei0r-test+0x49a88d)

#1 0x7f6b773d1717 in f0r_construct /home/jrml/frei0r/build/../src/filter/colortap/colortap.c:344:23
#2 0x4cdb61 in main /home/jrml/frei0r/test/frei0r-test.c:126:14
#3 0x7f6b8e01bd09 in __libc_start_main csu/../csu/libc-start.c:308:16

SUMMARY: AddressSanitizer: 6 byte(s) leaked in 1 allocation(s).