Add etc. handling to the soplitter

pydocstringformatter/formatting/formatter.py

@@ -130,7 +130,7 @@ class SplitSummaryAndDocstringFormatter(StringAndQuotesFormatter):
 
     end_of_sentence_period = re.compile(
         r"""
-        (?<!e.g|i.e)                        # Not preceded by 'e.g', 'i.e'
+        (?<!e.g|i.e|etc)                        # Not preceded by 'e.g', 'i.e', 'etc'
         \.                                  # A dot
         (?!\w)                              # Not followed by a letter
         """,

tests/data/format/summary_splitter/dots.py

@@ -14,3 +14,10 @@ def func():
 
 def func():
     """We should not split for i.e. here."""
+
+
+def func():
+    """We should not add line after i.e., sys.path, e.g., etc. but etc. in particular
+
+    is harder right ?
+    """

tests/data/format/summary_splitter/dots.py.out

@@ -6,15 +6,18 @@ def func():
     """We should not add extra lines after the dot
     to it.
     """
-def func():
-    """We should not add line after i.e., sys.path, e.g., etc. but etc. in particular 
-
-    is harder right ?
-    """
+
 
 def func():
     """We should not split for e.g. here."""
 
 
 def func():
     """We should not split for i.e. here."""
+
+
+def func():
+    """We should not add line after i.e., sys.path, e.g., etc. but etc. in particular.
+
+    is harder right ?
+    """