Fix tabs vs spaces in big text-heavy output

The output messages are using literal strings, which
were automatically being formatted with tabs. Lots of tabs.

This caused the entire message to be indented by 125 spaces.
Or something.

That's too much.

Author: Katrina Owen

cmd/configure.go

@@ -155,14 +155,14 @@ func runConfigure(configuration config.Configuration, flags *pflag.FlagSet) erro
 		if info, err := os.Lstat(workspace); !os.IsNotExist(err) && !info.IsDir() {
 			msg := `
 
-			There is already something at the workspace location you are configuring:
+    There is already something at the workspace location you are configuring:
 
-			  %s
+      %s
 
-			Please rename it, or set a different workspace location:
+     Please rename it, or set a different workspace location:
 
-			  %s configure %s --workspace=PATH_TO_DIFFERENT_FOLDER
-			`
+       %s configure %s --workspace=PATH_TO_DIFFERENT_FOLDER
+     `
 
 			return fmt.Errorf(msg, workspace, BinaryName, commandify(flags))
 		}
@@ -174,18 +174,20 @@ func runConfigure(configuration config.Configuration, flags *pflag.FlagSet) erro
 		// If it already exists don't clobber it with the default.
 		if _, err := os.Lstat(workspace); !os.IsNotExist(err) {
 			msg := `
-			The default Exercism workspace is
+    The default Exercism workspace is
 
-			  %s
+      %s
 
-			There is already something there.
-			If it's a directory, that might be fine. If it's a file, you will need to move it first,
-			or choose a different location for the workspace.
+    There is already something there.
+    If it's a directory, that might be fine.
+    If it's a file, you will need to move it first, or choose a
+    different location for the workspace.
 
-			You can choose the workspace location by rerunning this command with the --workspace flag.
+    You can choose the workspace location by rerunning this command
+    with the --workspace flag.
 
-			  %s configure %s --workspace=%s
-			`
+      %s configure %s --workspace=%s
+    `
 
 			return fmt.Errorf(msg, workspace, BinaryName, commandify(flags), workspace)
 		}

cmd/submit.go

@@ -77,7 +77,7 @@ func runSubmit(cfg config.Configuration, flags *pflag.FlagSet, args []string) er
 
         %s configure --token=YOUR_TOKEN
 
-		`
+    `
 		return fmt.Errorf(msg, tokenURL, BinaryName)
 	}
 
@@ -212,7 +212,7 @@ func runSubmit(cfg config.Configuration, flags *pflag.FlagSet, args []string) er
 
 			msg := `
 
-		WARNING: Skipping empty file
+    WARNING: Skipping empty file
              %s
 
 		`
@@ -225,7 +225,7 @@ func runSubmit(cfg config.Configuration, flags *pflag.FlagSet, args []string) er
 	if len(paths) == 0 {
 		msg := `
 
-		No files found to submit.
+    No files found to submit.
 
 		`
 		return errors.New(msg)