Update generated docs, given upstream cobra/pflag changes.

docs/man/man1/kubectl-exec.1

@@ -21,6 +21,10 @@ Execute a command in a container.
 \fB\-c\fP, \fB\-\-container\fP=""
     Container name
 
+.PP
+\fB\-h\fP, \fB\-\-help\fP=false
+    help for exec
+
 .PP
 \fB\-p\fP, \fB\-\-pod\fP=""
     Pod name
@@ -67,10 +71,6 @@ Execute a command in a container.
 \fB\-\-context\fP=""
     The name of the kubeconfig context to use
 
-.PP
-\fB\-h\fP, \fB\-\-help\fP=false
-    help for kubectl
-
 .PP
 \fB\-\-insecure\-skip\-tls\-verify\fP=false
     If true, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure.