Speed up spellchecking by ignoring whitespace-only lines (#3722)

Author: nthykier

codespell_lib/_codespell.py

@@ -946,7 +946,8 @@ def parse_file(
             return bad_count
 
     for i, line in enumerate(lines):
-        if line.rstrip() in exclude_lines:
+        line = line.rstrip()
+        if not line or line in exclude_lines:
             continue
 
         extra_words_to_ignore = set()

pyproject.toml

@@ -173,4 +173,4 @@ allow-magic-value-types = ["bytes", "int", "str",]
 max-args = 13
 max-branches = 48
 max-returns = 12
-max-statements = 119
+max-statements = 120