Update fork_102.md (#151)

This include is needed ``` #include <unistd.h> ```
2021-09-15 13:49:07 +03:00
parent 54ad724241
commit ed85173a0b
1 changed files with 5 additions and 4 deletions
@@ -4,6 +4,7 @@ Answer the questions given the following program (without running it):

 ```
 #include<stdio.h>
+#include <unistd.h> 

 int main()
 {