[flang] Fix typo in error message

The title says it all.

Differential Revision: https://reviews.llvm.org/D95233

Author: psteinfeld

flang/lib/Semantics/check-call.cpp

@@ -548,7 +548,7 @@ static void CheckProcedureArg(evaluate::ActualArgument &arg,
                 messages.Say(
                     "Actual procedure argument has an implicit interface "
                     "which is not known to be compatible with %s which has an "
-                    "explcit interface"_err_en_US,
+                    "explicit interface"_err_en_US,
                     dummyName);
                 return;
               }

flang/test/Semantics/call09.f90

@@ -78,7 +78,7 @@ subroutine test1 ! 15.5.2.9(5)
     call s01(null(intPtr))
     !ERROR: Actual argument associated with procedure dummy argument 'p=' is not a procedure
     call s01(B"0101")
-    !ERROR: Actual procedure argument has an implicit interface which is not known to be compatible with dummy argument 'p=' which has an explcit interface
+    !ERROR: Actual procedure argument has an implicit interface which is not known to be compatible with dummy argument 'p=' which has an explicit interface
     call s01(extfunc)
     !ERROR: Actual argument associated with procedure pointer dummy argument 'p=' must be a POINTER unless INTENT(IN)
     call s02(realfunc)
@@ -93,9 +93,9 @@ subroutine test1 ! 15.5.2.9(5)
     call s02(null(p))
     !ERROR: Actual argument associated with procedure pointer dummy argument 'p=' must be a POINTER unless INTENT(IN)
     call s02(sin)
-    !ERROR: Actual procedure argument has an implicit interface which is not known to be compatible with dummy argument 'p=' which has an explcit interface
+    !ERROR: Actual procedure argument has an implicit interface which is not known to be compatible with dummy argument 'p=' which has an explicit interface
     call s02(extfunc)
-    !ERROR: Actual procedure argument has an implicit interface which is not known to be compatible with dummy argument 'p=' which has an explcit interface
+    !ERROR: Actual procedure argument has an implicit interface which is not known to be compatible with dummy argument 'p=' which has an explicit interface
     call s03(extfuncPtr)
   end subroutine