bpo-35133: Fix mistakes when concatenate string literals on different lines. (GH-10284)

Two kind of mistakes:

1. Missed space. After concatenating there is no space between words.

2. Missed comma. Causes unintentional concatenating in a list of strings.

command/bdist_dumb.py

@@ -32,7 +32,7 @@ class bdist_dumb(Command):
                     ('skip-build', None,
                      "skip rebuilding everything (for testing/debugging)"),
                     ('relative', None,
-                     "build the archive using relative paths"
+                     "build the archive using relative paths "
                      "(default: false)"),
                     ('owner=', 'u',
                      "Owner name used when creating a tar file"

command/bdist_msi.py

@@ -98,14 +98,14 @@ class bdist_msi(Command):
                     ('no-target-compile', 'c',
                      "do not compile .py to .pyc on the target system"),
                     ('no-target-optimize', 'o',
-                     "do not compile .py to .pyo (optimized)"
+                     "do not compile .py to .pyo (optimized) "
                      "on the target system"),
                     ('dist-dir=', 'd',
                      "directory to put final built distributions in"),
                     ('skip-build', None,
                      "skip rebuilding everything (for testing/debugging)"),
                     ('install-script=', None,
-                     "basename of installation script to be run after"
+                     "basename of installation script to be run after "
                      "installation or before deinstallation"),
                     ('pre-install-script=', None,
                      "Fully qualified filename of a script to be run before "

command/bdist_rpm.py

@@ -58,7 +58,7 @@ class bdist_rpm(Command):
          "RPM \"vendor\" (eg. \"Joe Blow <joe@example.com>\") "
          "[default: maintainer or author from setup script]"),
         ('packager=', None,
-         "RPM packager (eg. \"Jane Doe <jane@example.net>\")"
+         "RPM packager (eg. \"Jane Doe <jane@example.net>\") "
          "[default: vendor]"),
         ('doc-files=', None,
          "list of documentation files (space or comma-separated)"),

command/bdist_wininst.py

@@ -29,7 +29,7 @@ class bdist_wininst(Command):
                     ('no-target-compile', 'c',
                      "do not compile .py to .pyc on the target system"),
                     ('no-target-optimize', 'o',
-                     "do not compile .py to .pyo (optimized)"
+                     "do not compile .py to .pyo (optimized) "
                      "on the target system"),
                     ('dist-dir=', 'd',
                      "directory to put final built distributions in"),
@@ -40,7 +40,7 @@ class bdist_wininst(Command):
                     ('skip-build', None,
                      "skip rebuilding everything (for testing/debugging)"),
                     ('install-script=', None,
-                     "basename of installation script to be run after"
+                     "basename of installation script to be run after "
                      "installation or before deinstallation"),
                     ('pre-install-script=', None,
                      "Fully qualified filename of a script to be run before "

command/build_ext.py

@@ -365,7 +365,7 @@ class build_ext(Command):
             ext_name, build_info = ext
 
             log.warn("old-style (ext_name, build_info) tuple found in "
-                     "ext_modules for extension '%s'"
+                     "ext_modules for extension '%s' "
                      "-- please convert to Extension instance", ext_name)
 
             if not (isinstance(ext_name, str) and