utils/getdeveloperlib.py: fix flake8 warnings

Fix a weird blank-line missing and 2 trailing blank-space.

Signed-off-by: Victor Huesca <victor.huesca@bootlin.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

utils/getdeveloperlib.py

@@ -79,9 +79,9 @@ def analyze_patches(patches):
     return (allfiles, allinfras)
 
 
-# 
+#
 # Unit-test parsing functions
-# 
+#
 
 def get_all_test_cases(suite):
     """Generate all test-cases from a given test-suite.
@@ -108,6 +108,7 @@ def list_unittests(path):
 
 unittests = {}
 
+
 #
 # DEVELOPERS file parsing functions
 #