test-without-stubs,exercises: Typo fixes

bin/test-without-stubs

@@ -64,6 +64,6 @@ fi
 
 # This is the last command in the file,
 # so the exit status of this script is the exit status of go test.
-# If this ever changes, remember to preserve the exit status acordingly.
+# If this ever changes, remember to preserve the exit status accordingly.
 # Otherwise Travis may falsely report a test as passed when it has failed.
 go test -cpu 2 $RACE ./...

exercises/beer-song/example.go

@@ -13,7 +13,7 @@ func Song() (result string) {
 	return
 }
 
-// Verses returns an exerpt of the lyrics of 99 bottles of beer
+// Verses returns an excerpt of the lyrics of 99 bottles of beer
 // between verse start and stop. The verse numbers count backwards, so the
 // first verse sung will be verse 99, and the last will be verse 0
 func Verses(start, stop int) (string, error) {

exercises/binary-search/binary_search_test.go

@@ -4,7 +4,7 @@
 // with the exercise README.
 //
 // * If there are duplicate values of the key you are searching for, you can't
-// just stop at the first one you find; you must find the first occurance in
+// just stop at the first one you find; you must find the first occurrence in
 // the slice.
 //
 // * There is no special "not found" indication.  If the search key is not

exercises/grade-school/grade_school_test.go

@@ -105,7 +105,7 @@ func TestNonExistantGrade(t *testing.T) {
 	s := New()
 	got := s.Grade(1)
 	if len(got) != 0 {
-		t.Errorf(`Get non-existant grade, got
+		t.Errorf(`Get non-existent grade, got
 %q
 expected
 []`, got)

exercises/minesweeper/minesweeper_test.go

@@ -94,7 +94,7 @@ var validBoards = []string{
 | |
 +-+`,
 
-	// 1x1 sqaure with 1 bomb
+	// 1x1 square with 1 bomb
 	`
 +-+
 |*|