MAINT: Apply pre-commit

Remove byte-order-marker pre-commit check as there would be
many adjustments necessary

91_Train/javascript/train.js

@@ -12,10 +12,10 @@ function input()
 {
     var input_element;
     var input_str;
-    
+
     return new Promise(function (resolve) {
                        input_element = document.createElement("INPUT");
-                       
+
                        print("? ");
                        input_element.setAttribute("type", "text");
                        input_element.setAttribute("length", "50");

91_Train/perl/train.pl

@@ -21,7 +21,7 @@ do {
 
 	my $V= $D*$T/($C-$T);
 	my $E= int(abs(($V-$A)*100/$A)+.5);
-	if ($E>5) { 
+	if ($E>5) {
 		print "SORRY.  YOU WERE OFF BY $E PERCENT.\n";
 		} else {
 		print "GOOD! ANSWER WITHIN $E PERCENT.\n";

91_Train/python/train.py

@@ -19,8 +19,8 @@ def play_game():
             time_answer = float(input("How long does the trip take by car "))
         except ValueError:
             print("Please enter a number.")
-    car_time = time_difference*train_speed/(car_speed-train_speed)
-    error_percent = int(abs((car_time-time_answer)*100/time_answer)+.5)
+    car_time = time_difference * train_speed / (car_speed - train_speed)
+    error_percent = int(abs((car_time - time_answer) * 100 / time_answer) + 0.5)
     if error_percent > 5:
         print("Sorry. You were off by", error_percent, "percent.")
         print("Correct answer is", round(car_time, 6), "hours")
@@ -36,8 +36,7 @@ def main():
     keep_playing = True
     while keep_playing:
         play_game()
-        keep_playing = input(
-            "\nAnother problem (yes or no) ").lower().startswith("y")
+        keep_playing = input("\nAnother problem (yes or no) ").lower().startswith("y")
 
 
 if __name__ == "__main__":

91_Train/ruby/train.rb

@@ -55,4 +55,4 @@ end
 
 trap "SIGINT" do puts; exit 130 end
 
-main
+main