Merge pull request #4124 from MaximeKjaer/fix-help-message-typos

Fix help message typos

Author: nicolasstucki

compiler/src/dotty/tools/dotc/config/ScalaSettings.scala

@@ -61,11 +61,11 @@ class ScalaSettings extends Settings.SettingGroup {
   val Xprint = PhasesSetting("-Xprint", "Print out program after")
   val XprintTypes = BooleanSetting("-Xprint-types", "Print tree types (debugging option).")
   val XprintDiff = BooleanSetting("-Xprint-diff", "Print changed parts of the tree since last print.")
-  val XprintDiffDel = BooleanSetting("-Xprint-diff-del", "Print chaged parts of the tree since last print including deleted parts.")
+  val XprintDiffDel = BooleanSetting("-Xprint-diff-del", "Print changed parts of the tree since last print including deleted parts.")
   val Xprompt = BooleanSetting("-Xprompt", "Display a prompt after each error (debugging option).")
   val XmainClass = StringSetting("-Xmain-class", "path", "Class for manifest's Main-Class entry (only useful with -d <jar>)", "")
   val XnoValueClasses = BooleanSetting("-Xno-value-classes", "Do not use value classes. Helps debugging.")
-  val XreplLineWidth = IntSetting("-Xrepl-line-width", "Maximial number of columns per line for REPL output", 390)
+  val XreplLineWidth = IntSetting("-Xrepl-line-width", "Maximal number of columns per line for REPL output", 390)
   val XfatalWarnings = BooleanSetting("-Xfatal-warnings", "Fail the compilation if there are any warnings.")
   val XverifySignatures = BooleanSetting("-Xverify-signatures", "Verify generic signatures in generated bytecode.")
 
@@ -95,7 +95,7 @@ class ScalaSettings extends Settings.SettingGroup {
   val YstopAfter = PhasesSetting("-Ystop-after", "Stop after") withAbbreviation ("-stop") // backward compat
   val YstopBefore = PhasesSetting("-Ystop-before", "Stop before") // stop before erasure as long as we have not debugged it fully
   val YtraceContextCreation = BooleanSetting("-Ytrace-context-creation", "Store stack trace of context creations.")
-  val YshowSuppressedErrors = BooleanSetting("-Yshow-suppressed-errors", "Also show follow-on errors and warnings that are normally supressed.")
+  val YshowSuppressedErrors = BooleanSetting("-Yshow-suppressed-errors", "Also show follow-on errors and warnings that are normally suppressed.")
   val YdetailedStats = BooleanSetting("-Ydetailed-stats", "show detailed internal compiler stats (needs Stats.enabled to be set to true).")
   val Yheartbeat = BooleanSetting("-Ydetailed-stats", "show heartbeat stack trace of compiler operations (needs Stats.enabled to be set to true).")
   val YprintPos = BooleanSetting("-Yprint-pos", "show tree positions.")