7 files changed, 8 insertions, 8 deletions
diff --git a/src/pkg/os/env.go b/src/pkg/os/env.go
index 071db0d1d..c1713586d 100644
--- a/src/pkg/os/env.go
+++ b/src/pkg/os/env.go
@@ -21,7 +21,7 @@ func copyenv() {
 	for _, s := range Envs {
 		for j := 0; j < len(s); j++ {
 			if s[j] == '=' {
-				env[s[0:j]] = s[j+1 : len(s)];
+				env[s[0:j]] = s[j+1:];
 				break;
 			}
 		}
diff --git a/src/pkg/os/exec.go b/src/pkg/os/exec.go
index 3797d80db..6525f254e 100644
--- a/src/pkg/os/exec.go
+++ b/src/pkg/os/exec.go
@@ -119,7 +119,7 @@ func itod(i int) string {
 		b[bp] = '-';
 	}
 
-	return string(b[bp:len(b)]);
+	return string(b[bp:]);
 }
 
 func (w Waitmsg) String() string {
diff --git a/src/pkg/os/file.go b/src/pkg/os/file.go
index bc7f02ef9..dc722055a 100644
--- a/src/pkg/os/file.go
+++ b/src/pkg/os/file.go
@@ -146,7 +146,7 @@ func (file *File) ReadAt(b []byte, off int64) (n int, err Error) {
 			err = &PathError{"read", file.name, Errno(e)};
 			break;
 		}
-		b = b[m:len(b)];
+		b = b[m:];
 		off += int64(m);
 	}
 	return;
@@ -191,7 +191,7 @@ func (file *File) WriteAt(b []byte, off int64) (n int, err Error) {
 			err = &PathError{"write", file.name, Errno(e)};
 			break;
 		}
-		b = b[m:len(b)];
+		b = b[m:];
 		off += int64(m);
 	}
 	return;
diff --git a/src/pkg/os/stat_darwin.go b/src/pkg/os/stat_darwin.go
index 1bdd37113..857c9068d 100644
--- a/src/pkg/os/stat_darwin.go
+++ b/src/pkg/os/stat_darwin.go
@@ -26,7 +26,7 @@ func dirFromStat(name string, dir *Dir, lstat, stat *syscall.Stat_t) *Dir {
 	dir.Ctime_ns = uint64(syscall.TimespecToNsec(stat.Ctimespec));
 	for i := len(name) - 1; i >= 0; i-- {
 		if name[i] == '/' {
-			name = name[i+1 : len(name)];
+			name = name[i+1:];
 			break;
 		}
 	}
diff --git a/src/pkg/os/stat_freebsd.go b/src/pkg/os/stat_freebsd.go
index d2630d72d..c28f97689 100644
--- a/src/pkg/os/stat_freebsd.go
+++ b/src/pkg/os/stat_freebsd.go
@@ -26,7 +26,7 @@ func dirFromStat(name string, dir *Dir, lstat, stat *syscall.Stat_t) *Dir {
 	dir.Ctime_ns = uint64(syscall.TimespecToNsec(stat.Ctimespec));
 	for i := len(name) - 1; i >= 0; i-- {
 		if name[i] == '/' {
-			name = name[i+1 : len(name)];
+			name = name[i+1:];
 			break;
 		}
 	}
diff --git a/src/pkg/os/stat_linux.go b/src/pkg/os/stat_linux.go
index e19725b22..a947b5802 100644
--- a/src/pkg/os/stat_linux.go
+++ b/src/pkg/os/stat_linux.go
@@ -26,7 +26,7 @@ func dirFromStat(name string, dir *Dir, lstat, stat *syscall.Stat_t) *Dir {
 	dir.Ctime_ns = uint64(syscall.TimespecToNsec(stat.Ctim));
 	for i := len(name) - 1; i >= 0; i-- {
 		if name[i] == '/' {
-			name = name[i+1 : len(name)];
+			name = name[i+1:];
 			break;
 		}
 	}
diff --git a/src/pkg/os/stat_nacl.go b/src/pkg/os/stat_nacl.go
index 9a66c671e..8cad9c944 100644
--- a/src/pkg/os/stat_nacl.go
+++ b/src/pkg/os/stat_nacl.go
@@ -26,7 +26,7 @@ func dirFromStat(name string, dir *Dir, lstat, stat *syscall.Stat_t) *Dir {
 	dir.Ctime_ns = uint64(stat.Ctime) * 1e9;
 	for i := len(name) - 1; i >= 0; i-- {
 		if name[i] == '/' {
-			name = name[i+1 : len(name)];
+			name = name[i+1:];
 			break;
 		}
 	}