#7973: Fix distutils options spelling.

Doc/distutils/builtdist.rst

@@ -176,7 +176,7 @@ easily specify multiple formats in one run.  If you need to do both, you can
 explicitly specify multiple :command:`bdist_\*` commands and their options::
 
    python setup.py bdist_rpm --packager="John Doe <jdoe@example.org>" \
-                   bdist_wininst --target_version="2.0"
+                   bdist_wininst --target-version="2.0"
 
 Creating RPM packages is driven by a :file:`.spec` file, much as using the
 Distutils is driven by the setup script.  To make your life easier, the

Lib/distutils/command/bdist_msi.py

@@ -148,7 +148,7 @@ class bdist_msi(Command):
             if not self.skip_build and self.distribution.has_ext_modules()\
                and self.target_version != short_version:
                 raise DistutilsOptionError(
-                      "target version can only be %s, or the '--skip_build'"
+                      "target version can only be %s, or the '--skip-build'"
                       " option must be specified" % (short_version,))
         else:
             self.versions = list(self.all_versions)

Lib/distutils/command/bdist_wininst.py

@@ -89,7 +89,7 @@ class bdist_wininst(Command):
             short_version = get_python_version()
             if self.target_version and self.target_version != short_version:
                 raise DistutilsOptionError(
-                      "target version can only be %s, or the '--skip_build'" \
+                      "target version can only be %s, or the '--skip-build'" \
                       " option must be specified" % (short_version,))
             self.target_version = short_version