fix formatting

Author: Vladimir Kotal

threads.tex

@@ -326,6 +326,7 @@
 a greater size than what is the system default, you have to use
 set the stack size via an attribute when creating a thread.
 The attribute is set using the \funnm{pthread\_attr\_setstacksize}() function.
+\\
 Example: \example{pthreads/pthread-stack-overflow.c}
 \item You can read more about thread specific data on page
 \pageref{THREAD_SPECIFIC_DATA}.