diff --git a/docs/CommandGuide/llc.pod b/docs/CommandGuide/llc.pod
index eba7859..7a7bbca 100644
--- a/docs/CommandGuide/llc.pod
+++ b/docs/CommandGuide/llc.pod
@@ -49,8 +49,9 @@
 
 =item B<-f>
 
-Overwrite output files. By default, B<llc> will refuse to overwrite
-an output file which already exists.
+Enable binary output on terminals.  Normally, B<llvm-extract> will refuse to
+write raw bitcode output if the output stream is a terminal. With this option,
+B<llvm-extract> will write raw bitcode regardless of the output device.
 
 =item B<-mtriple>=I<target triple>
 
diff --git a/docs/CommandGuide/llvm-as.pod b/docs/CommandGuide/llvm-as.pod
index 2befed1..045a924 100644
--- a/docs/CommandGuide/llvm-as.pod
+++ b/docs/CommandGuide/llvm-as.pod
@@ -46,9 +46,9 @@
 
 =item B<-f>
 
-Force overwrite.  Normally, B<llvm-as> will refuse to overwrite an
-output file that already exists.  With this option, B<llvm-as>
-will overwrite the output file and replace it with new bitcode.
+Enable binary output on terminals.  Normally, B<llvm-as> will refuse to
+write raw bitcode output if the output stream is a terminal. With this option,
+B<llvm-as> will write raw bitcode regardless of the output device.
 
 =item B<--help>
 
diff --git a/docs/CommandGuide/llvm-dis.pod b/docs/CommandGuide/llvm-dis.pod
index 8df382d..2b83290 100644
--- a/docs/CommandGuide/llvm-dis.pod
+++ b/docs/CommandGuide/llvm-dis.pod
@@ -29,9 +29,9 @@
 
 =item B<-f>
 
-Force overwrite.  Normally, B<llvm-dis> will refuse to overwrite
-an output file that already exists.  With this option, B<llvm-dis>
-will overwrite the output file.
+Enable binary output on terminals.  Normally, B<llvm-dis> will refuse to
+write raw bitcode output if the output stream is a terminal. With this option,
+B<llvm-dis> will write raw bitcode regardless of the output device.
 
 =item B<--help>
 
diff --git a/docs/CommandGuide/llvm-extract.pod b/docs/CommandGuide/llvm-extract.pod
index d916612..c3bc019 100644
--- a/docs/CommandGuide/llvm-extract.pod
+++ b/docs/CommandGuide/llvm-extract.pod
@@ -28,9 +28,9 @@
 
 =item B<-f>
 
-Force overwrite.  Normally, B<llvm-extract> will refuse to overwrite an
-output file that already exists.  With this option, B<llvm-extract>
-will overwrite the output file and replace it with new bitcode.
+Enable binary output on terminals.  Normally, B<llvm-extract> will refuse to
+write raw bitcode output if the output stream is a terminal. With this option,
+B<llvm-extract> will write raw bitcode regardless of the output device.
 
 =item B<--func> I<function-name>
 
diff --git a/docs/CommandGuide/llvm-link.pod b/docs/CommandGuide/llvm-link.pod
index 5f4dcb6..8a2a8c5 100644
--- a/docs/CommandGuide/llvm-link.pod
+++ b/docs/CommandGuide/llvm-link.pod
@@ -33,8 +33,9 @@
 
 =item B<-f>
 
-Overwrite output files.  By default, B<llvm-link> will not overwrite an output
-file if it already exists.
+Enable binary output on terminals.  Normally, B<llvm-link> will refuse to
+write raw bitcode output if the output stream is a terminal. With this option,
+B<llvm-link> will write raw bitcode regardless of the output device.
 
 =item B<-o> F<filename>
 
diff --git a/docs/CommandGuide/opt.pod b/docs/CommandGuide/opt.pod
index 75b7edd..3e23cd1 100644
--- a/docs/CommandGuide/opt.pod
+++ b/docs/CommandGuide/opt.pod
@@ -39,9 +39,9 @@
 
 =item B<-f>
 
-Force overwrite.  Normally, B<opt> will refuse to overwrite an
-output file that already exists.  With this option, B<opt> will
-overwrite the output file and replace it with new bitcode.
+Enable binary output on terminals.  Normally, B<opt> will refuse to
+write raw bitcode output if the output stream is a terminal. With this option,
+B<opt> will write raw bitcode regardless of the output device.
 
 =item B<-help>