ptrace.2, setns.2, glob.7, ld.so.8: ffix: hyphen-used-as-minus-sign

See http://lintian.debian.org/tags/hyphen-used-as-minus-sign.html

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

man2/ptrace.2

@@ -1955,7 +1955,7 @@ file descriptor.
 The usual symptom of this bug is that when you attach to
 a quiescent process with the command
 
-    strace -p <process-ID>
+    strace \-p <process-ID>
 
 then, instead of the usual
 and expected one-line output such as

man2/setns.2

@@ -146,7 +146,7 @@ Password:
 clone() returned 3550
 uts.nodename in child:  bizarro
 uts.nodename in parent: antero
-# \fBuname -n\fP             # Verify hostname in the shell
+# \fBuname \-n\fP             # Verify hostname in the shell
 antero
 .in
 .fi
@@ -159,7 +159,7 @@ set by the child created by the first program:
 .nf
 .in +4n
 # \fB./ns_exec /proc/3550/ns/uts /bin/bash\fP
-# \fBuname -n\fP             # Executed in shell started by ns_exec
+# \fBuname \-n\fP             # Executed in shell started by ns_exec
 bizarro
 .in
 .fi

man7/glob.7

@@ -120,7 +120,7 @@ With
 .I bash
 one can force the classical behavior using this command:
 
-    shopt -s nullglob
+    shopt \-s nullglob
 .\" In Bash v1, by setting allow_null_glob_expansion=true
 
 (Similar problems occur elsewhere.

man8/ld.so.8

@@ -97,7 +97,7 @@ Thus, an application located in
 .I somedir/app
 could be compiled with
 
-    gcc -Wl,-rpath,\(aq$ORIGIN/../lib\(aq
+    gcc \-Wl,\-rpath,\(aq$ORIGIN/../lib\(aq
 
 so that it finds an associated shared library in
 .I somedir/lib