option directive also allows all punctuations for the option name (refs: #3366)

CHANGES

@@ -13,6 +13,7 @@ Incompatible changes
 * LaTeX positioned long tables horizontally centered, and short ones
   flushed left (no text flow around table.) The position now defaults to center in
   both cases, and it will obey Docutils 0.13 ``:align:`` option (refs #3415, #3377)
+* option directive also allows all punctuations for the option name (refs: #3366)
 
 Features removed
 ----------------

sphinx/domains/std.py

@@ -45,7 +45,7 @@ logger = logging.getLogger(__name__)
 
 
 # RE for option descriptions
-option_desc_re = re.compile(r'((?:/|--|-|\+)?[-+\.?@#_a-zA-Z0-9]+)(=?\s*.*)')
+option_desc_re = re.compile(r'((?:/|--|-|\+)?[^\s=]+)(=?\s*.*)')
 # RE for grammar tokens
 token_re = re.compile('`(\w+)`', re.U)