syntax: adjust the magic strings for the changes since file-5.10

Since file-5.10 (end of 2011), libmagic identifies a C file in most
cases as "C source" instead of as "C program".  Nano's magic strings
for some other files didn't match any more what file-5.32 currently
produces, either.  So, they have been adjusted, new ones added, and
old ones deleted.

This fixes https://savannah.gnu.org/bugs/?52445.

syntax/asm.nanorc

 ## Here is an example for assembler.
 
 syntax "asm" "\.(S|s|asm)$"
-magic "[Aa]ssembl(y|er)"
+magic "assembler source"
 comment "//"
 
 color red "\<[A-Z_]{2,}\>"

syntax/awk.nanorc

 ## Here is an example for awk.
 
 syntax "awk" "\.awk$"
-magic "awk.*script text"
+magic "awk script"
 comment "#"
 
 # Records.

syntax/c.nanorc

 ## Here is an example for C/C++.
 
 syntax "c" "\.(c(c|pp|xx|\+\+)?|C)$" "\.(h(h|pp|xx)?|H)$" "\.ii?$"
-magic "(ASCII|UTF-8 Unicode) C(\+\+)? program text"
+magic "^(C|C\+\+) (source|program)"
 comment "//"
 
 # Constants.

syntax/elisp.nanorc

 ## Here is an example for Emacs Lisp.
 
 syntax "elisp" "\.el$"
+magic "Lisp/Scheme program"
 comment ";"
 
 # Basic functions/macros

syntax/guile.nanorc

@@ -2,7 +2,6 @@
 
 syntax "guile" "\.scm$"
 header "^#!.*guile"
-magic "guile"
 comment ";"
 
 # Basic scheme functions

syntax/html.nanorc

 ## Here is an example for HTML.
 
 syntax "html" "\.html?$"
-magic "HTML document text"
+magic "HTML document"
 comment "<!--|-->"
 
 # Tags:

syntax/lua.nanorc

@@ -5,6 +5,7 @@
 ## Version: 2011-05-05
 
 syntax "lua" "\.lua$"
+magic "Lua script"
 comment "--"
 
 color brightwhite "\[\[.*\]\]"

syntax/makefile.nanorc

 ## Here is an example for Makefiles.
 
 syntax "makefile" "Makefile[^/]*$" "\.(make|mk)$"
+magic "makefile script"
 comment "#"
 
 color red "[:=]"

syntax/man.nanorc

 ## Here is an example for manpages.
 
 syntax "man" "\.[1-9]x?$"
-magic "troff or preprocessor input text"
+magic "troff or preprocessor input"
 comment ".\""
 
 color green "\.(SH|SS|TH) .*$"

syntax/objc.nanorc

 ## Here is an example for C/C++/Obj-C.
 
 syntax "m" "\.m$"
+magic "Objective-C source"
 comment "//"
 
 # Stuffs,

syntax/ocaml.nanorc

 ## Syntax highlighting for OCaml.
 
 syntax "ocaml" "\.mli?$"
+magic "OCaml"
 comment "(*|*)"
 
 # Uid:

syntax/patch.nanorc

 ## Here is an example for patch files.
 
 syntax "patch" "\.(patch|diff|debdiff)$"
-magic "diff output text"
+magic "diff output"
 # There is no official support for comments in patch files.
 comment ""
 

syntax/perl.nanorc

@@ -2,7 +2,7 @@
 
 syntax "perl" "\.p[lm]$"
 header "^#!.*perl[-0-9._]*"
-magic "Perl script text"
+magic "Perl script"
 comment "#"
 
 color red "\<(accept|alarm|atan2|bin(d|mode)|c(aller|h(dir|mod|op|own|root)|lose(dir)?|onnect|os|rypt)|d(bm(close|open)|efined|elete|ie|o|ump)|e(ach|of|val|x(ec|ists|it|p))|f(cntl|ileno|lock|ork))\>" "\<(get(c|login|peername|pgrp|ppid|priority|pwnam|(host|net|proto|serv)byname|pwuid|grgid|(host|net)byaddr|protobynumber|servbyport)|([gs]et|end)(pw|gr|host|net|proto|serv)ent|getsock(name|opt)|gmtime|goto|grep|hex|index|int|ioctl|join)\>" "\<(keys|kill|last|length|link|listen|local(time)?|log|lstat|m|mkdir|msg(ctl|get|snd|rcv)|next|oct|open(dir)?|ord|pack|pipe|pop|printf?|push|q|qq|qx|rand|re(ad(dir|link)?|cv|do|name|quire|set|turn|verse|winddir)|rindex|rmdir|s|scalar|seek(dir)?)\>" "\<(se(lect|mctl|mget|mop|nd|tpgrp|tpriority|tsockopt)|shift|shm(ctl|get|read|write)|shutdown|sin|sleep|socket(pair)?|sort|spli(ce|t)|sprintf|sqrt|srand|stat|study|substr|symlink|sys(call|read|tem|write)|tell(dir)?|time|tr(y)?|truncate|umask)\>" "\<(un(def|link|pack|shift)|utime|values|vec|wait(pid)?|wantarray|warn|write)\>"

syntax/php.nanorc

 ## Here is an example for PHP.
 
 syntax "php" "\.ph(p[23457s~]?|tml)$"
-magic "PHP script text"
+magic "PHP script"
 comment "//"
 
 # PHP markings.

syntax/postgresql.nanorc

 ## Here is an example for PostgreSQL.
 
 syntax "sql" "\.sql[2345s~]?$"
-magic "PostgreSQL script text"
 comment "-- "
 
 # Functions.

syntax/python.nanorc

@@ -2,6 +2,7 @@
 
 syntax "python" "\.py$"
 header "^#!.*python[-0-9._]*"
+magic "Python script"
 linter pyflakes
 comment "#"
 

syntax/ruby.nanorc

@@ -2,6 +2,7 @@
 
 syntax "ruby" "\.rb$"
 header "^#!.*ruby[-0-9._]*"
+magic "Ruby script"
 linter ruby -w -c
 comment "#"
 

syntax/sh.nanorc

@@ -2,7 +2,7 @@
 
 syntax "sh" "\.sh$"
 header "^#!.*((ba|da|k|pdk)?sh[-0-9_]*|openrc-run|runscript)"
-magic "(POSIX|Bourne.*) shell script text"
+magic "(POSIX|Bourne-Again) shell script.*text"
 linter dash -n
 comment "#"
 

syntax/tcl.nanorc

 ## Syntax highlighting for Tcl files.
 
 syntax "tcl" "\.tcl$"
+magic "Tcl(/Tk)? script"
 comment "#"
 
 # Standard Tcl [info commands]:

syntax/tex.nanorc

 ## Here is a short example for TeX files.
 
 syntax "tex" "\.tex$"
+magic "(La)?TeX document"
 linter chktex -v0 -q -I
 comment "%"