[C]: account for linux realloc with size of 0.
[C]: account for linux realloc with size of 0.

galderz/Aeron,real-logic/Aeron,galderz/Aeron,galderz/Aeron,EvilMcJerkface/Aeron,EvilMcJerkface/Aeron,real-logic/Aeron,EvilMcJerkface/Aeron,mikeb01/Aeron,real-logic/Aeron,galderz/Aeron,real-logic/Aeron,mikeb01/Aeron,EvilMcJerkface/Aeron,mikeb01/Aeron,mikeb01/Aeron