gh-81283: compiler: remove indent from docstring (#106411)

Co-authored-by: Éric <merwok@netwok.org>

Lib/inspect.py

@@ -881,29 +881,28 @@ def cleandoc(doc):
 
     Any whitespace that can be uniformly removed from the second line
     onwards is removed."""
-    try:
-        lines = doc.expandtabs().split('\n')
-    except UnicodeError:
-        return None
-    else:
-        # Find minimum indentation of any non-blank lines after first line.
-        margin = sys.maxsize
-        for line in lines[1:]:
-            content = len(line.lstrip())
-            if content:
-                indent = len(line) - content
-                margin = min(margin, indent)
-        # Remove indentation.
-        if lines:
-            lines[0] = lines[0].lstrip()
-        if margin < sys.maxsize:
-            for i in range(1, len(lines)): lines[i] = lines[i][margin:]
-        # Remove any trailing or leading blank lines.
-        while lines and not lines[-1]:
-            lines.pop()
-        while lines and not lines[0]:
-            lines.pop(0)
-        return '\n'.join(lines)
+    lines = doc.expandtabs().split('\n')
+
+    # Find minimum indentation of any non-blank lines after first line.
+    margin = sys.maxsize
+    for line in lines[1:]:
+        content = len(line.lstrip(' '))
+        if content:
+            indent = len(line) - content
+            margin = min(margin, indent)
+    # Remove indentation.
+    if lines:
+        lines[0] = lines[0].lstrip(' ')
+    if margin < sys.maxsize:
+        for i in range(1, len(lines)):
+            lines[i] = lines[i][margin:]
+    # Remove any trailing or leading blank lines.
+    while lines and not lines[-1]:
+        lines.pop()
+    while lines and not lines[0]:
+        lines.pop(0)
+    return '\n'.join(lines)
+
 
 def getfile(object):
     """Work out which source or compiled file an object was defined in."""