syntax fixups suggested by PyCharm

Drop unneeded parens.
Drop trailing semicolons.
Triple double-quote docstrings.
Regexes drop unneeded escapes.
Spaces around parens, braces: remove/add.
Some one-tuples get their missing closing comma.
A couple of sets use set init syntax {foo} instead of set([iter]) now.
And a fiddle in Node to reduce lookup time on md5 signature functions
 (came about because of a line-too-long issue, initially)

Signed-off-by: Mats Wichmann <mats@linux.com>

3 files changed, 3 insertions, 3 deletions

diff --git a/test/LINK/LINKCOMSTR.py b/test/LINK/LINKCOMSTR.py
index df070fb..419056c 100644
--- a/test/LINK/LINKCOMSTR.py
+++ b/test/LINK/LINKCOMSTR.py
@@ -75,7 +75,7 @@ int main(int argc, char **argv) {}
 """)
 
 test.run()
-if ("Linking" not in test.stdout()):
+if "Linking" not in test.stdout():
     test.fail_test()
 
 test.pass_test()
diff --git a/test/LINK/SHLINKCOMSTR.py b/test/LINK/SHLINKCOMSTR.py
index 4dd5c7c..18cfc9b 100644
--- a/test/LINK/SHLINKCOMSTR.py
+++ b/test/LINK/SHLINKCOMSTR.py
@@ -87,7 +87,7 @@ int i;
 """)
 
         test.run()
-        if ("Shared-Linking" not in test.stdout()):
+        if "Shared-Linking" not in test.stdout():
             test.fail_test()
 
 test.pass_test()
diff --git a/test/LINK/applelink.py b/test/LINK/applelink.py
index e1b2837..c631e32 100644
--- a/test/LINK/applelink.py
+++ b/test/LINK/applelink.py
@@ -135,7 +135,7 @@ for SHLIBVERSION, \
         test.must_contain_all_lines(test.stdout(),
                                     ['-Wl,-compatibility_version,{APPLELINK_COMPATIBILITY_VERSION}'.format(**locals())])
 
-    if not (extra_flags):
+    if not extra_flags:
         # Now run otool -L to get the compat and current version info and verify it's correct in the library.
         # We expect output such as this
         # libfoo.1.2.3.dylib: