cleanup avocado:utils:linux_modules -- style issue

fixed pep8 issue in script
Signed-off-by: NPraveen K Pandey <praveen@linux.vnet.ibm.com>

avocado/utils/linux_modules.py

@@ -105,7 +105,8 @@ def loaded_module_info(module_name):
     """
     l_raw = process.system_output('/sbin/lsmod').decode('utf-8')
     modinfo_dic = parse_lsmod_for_module(l_raw, module_name)
-    output = process.system_output("/sbin/modinfo %s" % module_name).decode('utf-8')
+    output = process.system_output(
+        "/sbin/modinfo %s" % module_name).decode('utf-8')
     if output:
         param_list = []
         for line in output.splitlines():