removed necessity of user input on apc install

installer.py

@@ -89,7 +89,7 @@ class Installer:
     self.__run_command("./configure --with-pdo-mysql --enable-fpm --with-fpm-user=www-data --with-fpm-group=www-data", cwd="php-5.4.13")
     self.__run_command("make", cwd="php-5.4.13")
     self.__run_command("sudo make install", cwd="php-5.4.13")
-    self.__run_command("sudo pecl install apc-beta", cwd="php-5.4.13")
+    self.__run_command("printf \"\\n\" | sudo pecl install apc-beta", cwd="php-5.4.13")
     self.__run_command("sudo cp ../config/php.ini /usr/local/lib/php.ini")
     self.__run_command("sudo cp ../config/php-fpm.conf /usr/local/lib/php-fpm.conf")
     self.__run_command("rm php-5.4.13.tar.gz")