Improve -Xprint-suspension message

[Cherry-picked cc69895]

Author: nicolasstucki

Diff for: compiler/src/dotty/tools/dotc/Run.scala

@@ -141,7 +141,7 @@ class Run(comp: Compiler, ictx: Context) extends ImplicitRunInfo with Constraint
                 |"""
       val enableXprintSuspensionHint =
         if ctx.settings.XprintSuspension.value then ""
-        else "\n\nCompiling with  -Xprint-suspension   gives more information."
+        else "\n\nCompile with -Xprint-suspension for information."
       report.error(em"""Cyclic macro dependencies $where
                     |Compilation stopped since no further progress can be made.
                     |

Diff for: tests/neg-macros/annot-suspend-cycle.check

@@ -9,4 +9,4 @@ Compilation stopped since no further progress can be made.
 
 To fix this, place macros in one set of files and their callers in another.
 
-Compiling with  -Xprint-suspension   gives more information.
+Compile with -Xprint-suspension for information.

Diff for: tests/neg-macros/macros-in-same-project-4.check

@@ -3,4 +3,4 @@ Compilation stopped since no further progress can be made.
 
 To fix this, place macros in one set of files and their callers in another.
 
-Compiling with  -Xprint-suspension   gives more information.
+Compile with -Xprint-suspension for information.