Fix minor spelling errors in manpages
--- a/man/man1/ngnutmeg.1
+++ b/man/man1/ngnutmeg.1
@@ -3,14 +3,14 @@
 
 (woman-find-file buffer-file-name)
 
-(let* ((man-args (concat "-l " buffer-file-name))
+(let* ((man-args (concat "\-l " buffer-file-name))
        (bufname (concat "*Man " man-args "*")))
   (when (get-buffer bufname)
     (kill-buffer bufname))
   (man man-args))
 
 (compile
-  (concat "groff -t -e -man -Tps "
+  (concat "groff \-t \-e \-man \-Tps "
           buffer-file-name
           " > /tmp/tmp.ps &&  gv /tmp/tmp.ps"))
 
--- a/man/man1/ngspice.1
+++ b/man/man1/ngspice.1
@@ -3,13 +3,13 @@
 
 (woman-find-file buffer-file-name)
 
-(let* ((man-args (concat "-l " buffer-file-name))
+(let* ((man-args (concat "\-l " buffer-file-name))
        (bufname (concat "*Man " man-args "*")))
   (when (get-buffer bufname)
     (kill-buffer bufname))
   (man man-args))
 
-(compile (concat "groff -t -e -man -Tps "
+(compile (concat "groff \-t \-e \-man \-Tps "
         buffer-file-name
         " > /tmp/tmp.ps &&  gv /tmp/tmp.ps"))
 
@@ -23,12 +23,12 @@
 \fBngspice\fP [\fIoptions\fP] [\fIfile\fP ...]
 .SH "DESCRIPTION"
 This man page is just a small overview.
-The primary documentation of ngspice is in the \*[ngspice] User's Manual,
+The primary documentation of ngspice is in the ngspice User's Manual,
 which is available as a pdf file.
 .SH "OPTIONS"
 .TP
 \fB\-n\fP  or  \fB\*=no\-spiceinit\fP
-Don't try to source the file ".spiceinit" upon startup. Normally \*[ngspice]
+Don't try to source the file ".spiceinit" upon startup. Normally ngspice
 tries to find the file in the current directory, and if it is not found then
 in the user's home directory.
 .TP
@@ -40,9 +40,9 @@
 .TP
 \fB\-b\fP  or  \fB\*=batch\fP
 Run in batch mode.
-\*[ngspice] will read the standard input or the specified
+ngspice will read the standard input or the specified
 input file and do the simulation.
-Note that if the standard input is not a terminal, \*[ngspice] will default
+Note that if the standard input is not a terminal, ngspice will default
 to batch mode, unless the \-i flag is given.
 .TP
 \fB\-s\fP  or  \fB\*=server\fP
@@ -136,7 +136,7 @@
 .SH "SEE ALSO"
 sconvert(1), ngnutmeg(1), mfb(3), writedata(3), and
 .br
-\*[ngspice] User's Manual at \fBhttp://ngspice.sourceforge.net/docs.html\fP
+ngspice User's Manual at \fBhttp://ngspice.sourceforge.net/docs.html\fP
 .SH "BUGS"
 Please report bugs to the ngspice project via
 .br