Replaced non-www instances of essentually with essentially. (#2421)
diff --git a/api_examples/cli_operators.c b/api_examples/cli_operators.c
index 22be78e..ed0b934 100644
--- a/api_examples/cli_operators.c
+++ b/api_examples/cli_operators.c
@@ -3,7 +3,7 @@
as defined in "MagickWand/operators.c" which uses a special
MagickCLI type of 'wand'.
- This is essentually the calls 'ProcessCommandOptions()' make
+ This is essentially the calls 'ProcessCommandOptions()' make
though without as many error and sanity checks.
Compile with ImageMagick-devlop installed...