Drop unnecessary periods from help strings

The ones for "Compiler options" have no dots, so this was inconsistent.
Also dropping the dots makes the text fit better on narrow terminals.

mesonbuild/coredata.py

@@ -590,31 +590,31 @@ def parse_cmd_line_options(args):
             delattr(args, name)
 
 builtin_options = {
-    'buildtype':  [UserComboOption, 'Build type to use.', ['plain', 'debug', 'debugoptimized', 'release', 'minsize', 'custom'], 'debug'],
-    'strip':      [UserBooleanOption, 'Strip targets on install.', False],
-    'unity':      [UserComboOption, 'Unity build.', ['on', 'off', 'subprojects'], 'off'],
-    'prefix':     [UserStringOption, 'Installation prefix.', default_prefix()],
-    'libdir':     [UserStringOption, 'Library directory.', default_libdir()],
-    'libexecdir': [UserStringOption, 'Library executable directory.', default_libexecdir()],
-    'bindir':     [UserStringOption, 'Executable directory.', 'bin'],
-    'sbindir':    [UserStringOption, 'System executable directory.', 'sbin'],
-    'includedir': [UserStringOption, 'Header file directory.', 'include'],
-    'datadir':    [UserStringOption, 'Data file directory.', 'share'],
-    'mandir':     [UserStringOption, 'Manual page directory.', 'share/man'],
-    'infodir':    [UserStringOption, 'Info page directory.', 'share/info'],
-    'localedir':  [UserStringOption, 'Locale data directory.', 'share/locale'],
-    'sysconfdir':      [UserStringOption, 'Sysconf data directory.', 'etc'],
-    'localstatedir':   [UserStringOption, 'Localstate data directory.', 'var'],
-    'sharedstatedir':  [UserStringOption, 'Architecture-independent data directory.', 'com'],
-    'werror':          [UserBooleanOption, 'Treat warnings as errors.', False],
-    'warning_level':   [UserComboOption, 'Compiler warning level to use.', ['1', '2', '3'], '1'],
-    'layout':          [UserComboOption, 'Build directory layout.', ['mirror', 'flat'], 'mirror'],
-    'default_library': [UserComboOption, 'Default library type.', ['shared', 'static', 'both'], 'shared'],
-    'backend':         [UserComboOption, 'Backend to use.', backendlist, 'ninja'],
-    'stdsplit':        [UserBooleanOption, 'Split stdout and stderr in test logs.', True],
-    'errorlogs':       [UserBooleanOption, "Whether to print the logs from failing tests.", True],
-    'install_umask':   [UserUmaskOption, 'Default umask to apply on permissions of installed files.', '022'],
-    'auto_features':   [UserFeatureOption, "Override value of all 'auto' features.", 'auto'],
+    'buildtype':  [UserComboOption, 'Build type to use', ['plain', 'debug', 'debugoptimized', 'release', 'minsize', 'custom'], 'debug'],
+    'strip':      [UserBooleanOption, 'Strip targets on install', False],
+    'unity':      [UserComboOption, 'Unity build', ['on', 'off', 'subprojects'], 'off'],
+    'prefix':     [UserStringOption, 'Installation prefix', default_prefix()],
+    'libdir':     [UserStringOption, 'Library directory', default_libdir()],
+    'libexecdir': [UserStringOption, 'Library executable directory', default_libexecdir()],
+    'bindir':     [UserStringOption, 'Executable directory', 'bin'],
+    'sbindir':    [UserStringOption, 'System executable directory', 'sbin'],
+    'includedir': [UserStringOption, 'Header file directory', 'include'],
+    'datadir':    [UserStringOption, 'Data file directory', 'share'],
+    'mandir':     [UserStringOption, 'Manual page directory', 'share/man'],
+    'infodir':    [UserStringOption, 'Info page directory', 'share/info'],
+    'localedir':  [UserStringOption, 'Locale data directory', 'share/locale'],
+    'sysconfdir':      [UserStringOption, 'Sysconf data directory', 'etc'],
+    'localstatedir':   [UserStringOption, 'Localstate data directory', 'var'],
+    'sharedstatedir':  [UserStringOption, 'Architecture-independent data directory', 'com'],
+    'werror':          [UserBooleanOption, 'Treat warnings as errors', False],
+    'warning_level':   [UserComboOption, 'Compiler warning level to use', ['1', '2', '3'], '1'],
+    'layout':          [UserComboOption, 'Build directory layout', ['mirror', 'flat'], 'mirror'],
+    'default_library': [UserComboOption, 'Default library type', ['shared', 'static', 'both'], 'shared'],
+    'backend':         [UserComboOption, 'Backend to use', backendlist, 'ninja'],
+    'stdsplit':        [UserBooleanOption, 'Split stdout and stderr in test logs', True],
+    'errorlogs':       [UserBooleanOption, "Whether to print the logs from failing tests", True],
+    'install_umask':   [UserUmaskOption, 'Default umask to apply on permissions of installed files', '022'],
+    'auto_features':   [UserFeatureOption, "Override value of all 'auto' features", 'auto'],
     'optimization':    [UserComboOption, 'Optimization level', ['0', 'g', '1', '2', '3', 's'], '0'],
     'debug':           [UserBooleanOption, 'Debug', True]
 }