Fix typo

Author: sheetalkamat

src/compiler/diagnosticMessages.json

@@ -3072,7 +3072,7 @@
         "category": "Error",
         "code": 5073
     },
-    "Option '--incremental' can only be speicified when using tsconfig.": {
+    "Option '--incremental' can only be specified when using tsconfig.": {
         "category": "Error",
         "code": 5074
     },

src/compiler/program.ts

@@ -2723,7 +2723,7 @@ namespace ts {
             }
 
             if (options.incremental && !options.configFilePath) {
-                programDiagnostics.add(createCompilerDiagnostic(Diagnostics.Option_incremental_can_only_be_speicified_when_using_tsconfig));
+                programDiagnostics.add(createCompilerDiagnostic(Diagnostics.Option_incremental_can_only_be_specified_when_using_tsconfig));
             }
 
             if (options.composite) {

tests/baselines/reference/invalidIncremental.errors.txt

@@ -1,7 +1,7 @@
-error TS5074: Option '--incremental' can only be speicified when using tsconfig.
+error TS5074: Option '--incremental' can only be specified when using tsconfig.
 
 
-!!! error TS5074: Option '--incremental' can only be speicified when using tsconfig.
+!!! error TS5074: Option '--incremental' can only be specified when using tsconfig.
 ==== tests/cases/compiler/invalidIncremental.ts (0 errors) ====
     const x = 10;