Use brackets to avoid ambiguos else

modules/gui/skins2/unzip/unzip.c

@@ -608,10 +608,12 @@ local int unzlocal_GetCurrentFileInfoInternal (file,
 
     /* we check the magic */
     if (err==UNZ_OK)
+    {
         if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK)
             err=UNZ_ERRNO;
         else if (uMagic!=0x02014b50)
             err=UNZ_BADZIPFILE;
+    }
 
     if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.version) != UNZ_OK)
         err=UNZ_ERRNO;
@@ -688,10 +690,12 @@ local int unzlocal_GetCurrentFileInfoInternal (file,
             uSizeRead = extraFieldBufferSize;
 
         if (lSeek!=0)
+        {
             if (ZSEEK(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
                 lSeek=0;
             else
                 err=UNZ_ERRNO;
+        }
         if ((file_info.size_file_extra>0) && (extraFieldBufferSize>0))
             if (ZREAD(s->z_filefunc, s->filestream,extraField,uSizeRead)!=uSizeRead)
                 err=UNZ_ERRNO;
@@ -713,10 +717,12 @@ local int unzlocal_GetCurrentFileInfoInternal (file,
             uSizeRead = commentBufferSize;
 
         if (lSeek!=0)
+        {
             if (ZSEEK(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
                 lSeek=0;
             else
                 err=UNZ_ERRNO;
+        }
         if ((file_info.size_file_comment>0) && (commentBufferSize>0))
             if (ZREAD(s->z_filefunc, s->filestream,szComment,uSizeRead)!=uSizeRead)
                 err=UNZ_ERRNO;
@@ -977,11 +983,12 @@ local int unzlocal_CheckCurrentFileCoherencyHeader (s,piSizeVar,
 
 
     if (err==UNZ_OK)
+    {
         if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK)
             err=UNZ_ERRNO;
         else if (uMagic!=0x04034b50)
             err=UNZ_BADZIPFILE;
-
+    }
     if (unzlocal_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK)
         err=UNZ_ERRNO;
 /*
@@ -1534,7 +1541,6 @@ extern int ZEXPORT unzGetGlobalComment (file, szComment, uSizeBuf)
     char *szComment;
     uLong uSizeBuf;
 {
-    int err=UNZ_OK;
     unz_s* s;
     uLong uReadThis ;
     if (file==NULL)