fix: ensure suffix is appended for non-integer values

Author: kgryte

lib/node_modules/@stdlib/math/base/tools/evalpoly-compile-c/lib/main.js

@@ -120,8 +120,9 @@ function compile( c, options ) {
 	// If more than one coefficient, apply Horner's method...
 	horner = c[ 0 ].toString();
 	if ( isInteger( c[ 0 ] ) ) {
-		horner += '.0{{dtype_suffix}}';
+		horner += '.0';
 	}
+	horner += '{{dtype_suffix}}';
 	for ( i = 1; i < n; i++ ) {
 		horner += ' + (x * ';
 		if ( i < m ) {