all: fix some comments

Change-Id: Idd6568edd3910379c0d558fd79679dbdb589fab1
Reviewed-on: https://go-review.googlesource.com/c/mobile/+/713082
Reviewed-by: David Chase <drchase@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Hajime Hoshi <hajimehoshi@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>

bind/genclasses.go

@@ -20,7 +20,6 @@ type (
 	// ClassGen generates Go and C stubs for Java classes so import statements
 	// on the form
 	//
-	//
 	// import "Java/classpath/to/Class"
 	//
 	// will work.

bind/genjava.go

@@ -45,7 +45,7 @@ type javaClassInfo struct {
 	genNoargCon bool
 }
 
-// Init intializes the embedded Generator and initializes the Java class information
+// Init initializes the embedded Generator and initializes the Java class information
 // needed to generate structs that extend Java classes and interfaces.
 func (g *JavaGen) Init(classes []*java.Class) {
 	g.Generator.Init()

bind/testdata/testpkg/testpkg.go

@@ -621,7 +621,7 @@ func NewMyStruct(ctx context.Context) *MyStruct {
 
 type Int32Constructed struct{}
 
-// Test that constuctors that clash with the internal proxy constructor
+// Test that constructors that clash with the internal proxy constructor
 // are skipped.
 func NewInt32Constructed(i int32) *Int32Constructed {
 	return nil

cmd/gobind/main.go

@@ -53,7 +53,7 @@ func run() {
 
 	// We need to give appropriate environment variables like CC or CXX so that the returned packages no longer have errors.
 	// However, getting such environment variables is difficult or impossible so far.
-	// Gomobile can obtain such environment variables in env.go, but this logic assumes some condiitons gobind doesn't assume.
+	// Gomobile can obtain such environment variables in env.go, but this logic assumes some conditions gobind doesn't assume.
 	cfg := &packages.Config{
 		Mode: packages.NeedName | packages.NeedFiles |
 			packages.NeedImports | packages.NeedDeps |

cmd/gomobile/env.go

@@ -390,7 +390,7 @@ func ndkRoot(targets ...targetInfo) (string, error) {
 		return "$NDK_PATH", nil
 	}
 
-	// Try the ANDROID_NDK_HOME variable.  This approach is deprecated, but it
+	// Try the ANDROID_NDK_HOME variable. This approach is deprecated, but it
 	// has the highest priority because it represents an explicit user choice.
 	if ndkRoot := os.Getenv("ANDROID_NDK_HOME"); ndkRoot != "" {
 		if err := checkNDKRoot(ndkRoot, targets); err != nil {

internal/importers/objc/objc.go

@@ -107,7 +107,7 @@ const (
 	Double
 )
 
-// Import returns  descriptors for a list of references to
+// Import returns descriptors for a list of references to
 // ObjC protocols and classes.
 //
 // The type information is parsed from the output of clang -cc1