Use NULL instead of unclear 0, where a pointer is concerned

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5377 43c1dc8c-776e-4df2-8ef1-6e829299be21
Remove of double/unnecessary semicolons

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5378 43c1dc8c-776e-4df2-8ef1-6e829299be21
Clean up if statement, which checks the same conditions twice

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5379 43c1dc8c-776e-4df2-8ef1-6e829299be21
Remove NULL pointer check for channel. Added comments about taking a reference for channel->line, which might make things clearer

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5380 43c1dc8c-776e-4df2-8ef1-6e829299be21
Remove of double/unnecessary semicolons

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5381 43c1dc8c-776e-4df2-8ef1-6e829299be21
Remove of double/unnecessary semicolons

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5382 43c1dc8c-776e-4df2-8ef1-6e829299be21
Remove NULL pointer check where not necesary

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5383 43c1dc8c-776e-4df2-8ef1-6e829299be21
When calling sccp_print_ha / sccp_print_group using a ast_str pointer, we should specify the size of the allocated memory, not the size of the pointer

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5384 43c1dc8c-776e-4df2-8ef1-6e829299be21