fix: doxygen header requires to only start with double asterisks

src/rules/file/hasDoxygenHeader.spec.ts

@@ -128,7 +128,7 @@ describe('hasDoxygenHeader - fix', () => {
     /**
    @file
    @brief Returns an unused libref
- **/
+ */
 
  %macro mf_getuniquelibref(prefix=mclib,maxtries=1000);
    %local x libref;

src/rules/file/hasDoxygenHeader.ts

@@ -59,7 +59,7 @@ const fix = (value: string, config?: LintConfig): string => {
   if (result.length === 0) {
     return value
   } else if (result[0].message == messageForSingleAsterisk)
-    return value.replace('/*', '/**').replace('*/', '**/')
+    return value.replace('/*', '/**')
 
   const lineEndingConfig = config?.lineEndings || LineEndings.LF
   const lineEnding = lineEndingConfig === LineEndings.LF ? '\n' : '\r\n'