Change this to instance within header

clish/shell.h

@@ -154,7 +154,7 @@ void clish_shell__set_startup_viewid(clish_shell_t * instance, const char * view
 void clish_shell__set_default_shebang(clish_shell_t * instance, const char * shebang);
 const char * clish_shell__get_default_shebang(const clish_shell_t * instance);
 char * clish_shell_mkfifo(clish_shell_t * instance, char *name, size_t n);
-int clish_shell_rmfifo(clish_shell_t * this, const char *name);
+int clish_shell_rmfifo(clish_shell_t * instance, const char *name);
 void clish_shell__set_interactive(clish_shell_t * instance, bool_t interactive);
 bool_t clish_shell__get_interactive(const clish_shell_t * instance);
 bool_t clish_shell__get_utf8(const clish_shell_t * instance);