tests: Trim .nim files trailing whitespace

via OSX: find . -name '*.nim' -exec sed -i '' -E 's/[[:space:]]+$//' {} +

tests/stdlib/tregex.nim

@@ -2,30 +2,30 @@ discard """
   file: "tregex.nim"
   output: "key: keyAYes!"
 """
-# Test the new regular expression module
-# which is based on the PCRE library
+# Test the new regular expression module
+# which is based on the PCRE library
 
 when defined(powerpc64):
   # cheat as our powerpc test machine has no PCRE installed:
   echo "key: keyAYes!"
 
-else:
-  import
-    re
-
-  if "keyA = valueA" =~ re"\s*(\w+)\s*\=\s*(\w+)":
-    write(stdout, "key: ", matches[0])
-  elif "# comment!" =~ re.re"\s*(\#.*)": 
-    # test re.re"" syntax
-    echo("comment: ", matches[0])
-  else: 
-    echo("Bug!")
-
-  if "Username".match(re"[A-Za-z]+"):
-    echo("Yes!")
-  else:
-    echo("Bug!")
-
-  #OUT key: keyAYes!
+else:
+  import
+    re
+
+  if "keyA = valueA" =~ re"\s*(\w+)\s*\=\s*(\w+)":
+    write(stdout, "key: ", matches[0])
+  elif "# comment!" =~ re.re"\s*(\#.*)":
+    # test re.re"" syntax
+    echo("comment: ", matches[0])
+  else:
+    echo("Bug!")
+
+  if "Username".match(re"[A-Za-z]+"):
+    echo("Yes!")
+  else:
+    echo("Bug!")
+
+  #OUT key: keyAYes!