Bug: Not allocating enough memory for shader paths

[OlaviTohver]

Crashing when using shader that has certain number of characters in its folder name.

How reproduce bug:

• In Shaders folder rename folder named samples to sample
• run liveW -p sample alsa_out.pci-0000_00_1b.0.analog-stereo.monitor
• Fails with error described below:

Fatal glibc error: malloc.c:2593 (sysmalloc): assertion failed: (old_top == initial_top (av) && old_size == 0) || ((unsigned long) (old_size) >= MINSIZE && prev_inuse (old_top) && ((unsigned long) old_end & (pagesize - 1)) == 0)

liveW/src/main.c

Line 43 in eea30a9

vertPath = (char*)malloc((strlen("Shaders//vert.glsl") + strlen(cfg.shaderName)) * sizeof(char));

FIX: Should be vertPath = (char*)malloc(((strlen("Shaders//vert.glsl") + strlen(shaderName)) * sizeof(char))+1);

liveW/src/main.c

Line 44 in eea30a9

fragPath = (char*)malloc((strlen("Shaders//frag.glsl") + strlen(cfg.shaderName)) * sizeof(char));

FIX: Should be fragPath = (char*)malloc(((strlen("Shaders//frag.glsl") + strlen(shaderName)) * sizeof(char))+1);